usb hello world \o/

35 files changed, 1062 insertions, 324 deletions

diff --git a/avr/1wire.c b/avr/1wire.c
new file mode 100644
index 0000000..237abb9
--- /dev/null
+++ b/avr/1wire.c
@@ -0,0 +1,130 @@
+/************************************************************************/
+/*									*/
+/*			Access Dallas 1-Wire Devices			*/
+/*                                                                      */
+/*              Author: Peter Dannegger                                 */
+/*                      danni@specs.de                                  */
+/*                                                                      */
+/************************************************************************/
+#include <util/delay.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+#ifndef W1_PIN
+#define W1_PIN	PA0
+#define W1_IN	PINA
+#define W1_OUT	PORTA
+#define W1_DDR	DDRA
+#endif
+
+uint8_t buff[2];
+
+uint8_t w1_reset(void)
+{
+  uint8_t err;
+
+  W1_OUT &= ~(1<<W1_PIN);
+  W1_DDR |= 1<<W1_PIN;
+  _delay_us(480 );			// 480 us
+  cli();
+  W1_DDR &= ~(1<<W1_PIN);
+  _delay_us( 66 );
+  err = W1_IN & (1<<W1_PIN);			// no presence detect
+  sei();
+  _delay_us( 480 - 66 );
+  if( (W1_IN & (1<<W1_PIN)) == 0 )		// short circuit
+    err = 1;
+  return err;
+}
+
+
+uint8_t w1_bit_io( uint8_t b )
+{
+  cli();
+  W1_DDR |= 1<<W1_PIN;
+  _delay_us( 1 );
+  if( b )
+    W1_DDR &= ~(1<<W1_PIN);
+ _delay_us( 15 - 1 );
+  if( (W1_IN & (1<<W1_PIN)) == 0 )
+    b = 0;
+  _delay_us( 60 - 15 );
+  W1_DDR &= ~(1<<W1_PIN);
+  sei();
+  return b;
+}
+
+
+uint w1_byte_wr( uint8_t b )
+{
+  uint8_t i = 8, j;
+  do{
+    j = w1_bit_io( b & 1 );
+    b >>= 1;
+    if( j )
+      b |= 0x80;
+  }while( --i );
+  return b;
+}
+
+
+uint w1_byte_rd( void )
+{
+  return w1_byte_wr( 0xFF );
+}
+
+
+uint8_t w1_rom_search( uint8_t diff, uint8_t idata *id )
+{
+  uint8_t i, j, next_diff;
+  uint8_t b;
+
+  if( w1_reset() )
+    return PRESENCE_ERR;			// error, no device found
+  w1_byte_wr( SEARCH_ROM );			// ROM search command
+  next_diff = LAST_DEVICE;			// unchanged on last device
+  i = 8 * 8;					// 8 bytes
+  do{
+    j = 8;					// 8 bits
+    do{
+      b = w1_bit_io( 1 );			// read bit
+      if( w1_bit_io( 1 ) ){			// read complement bit
+	if( b )					// 11
+	  return DATA_ERR;			// data error
+      }else{
+	if( !b ){				// 00 = 2 devices
+	  if( diff > i ||
+	    ((*id & 1) && diff != i) ){
+	    b = 1;				// now 1
+	    next_diff = i;			// next pass 0
+	  }
+	}
+      }
+      w1_bit_io( b );     			// write bit
+      *id >>= 1;
+      if( b )					// store bit
+	*id |= 0x80;
+      i--;
+    }while( --j );
+    id++;					// next byte
+  }while( i );
+  return next_diff;				// to continue search
+}
+
+
+void w1_command( uint8_t command, uint8_t idata *id )
+{
+  uint8_t i;
+  w1_reset();
+  if( id ){
+    w1_byte_wr( MATCH_ROM );			// to a single device
+    i = 8;
+    do{
+      w1_byte_wr( *id );
+      id++;
+    }while( --i );
+  }else{
+    w1_byte_wr( SKIP_ROM );			// to all devices
+  }
+  w1_byte_wr( command );
+}
diff --git a/avr/1wire.h b/avr/1wire.h
new file mode 100644
index 0000000..d5657ad
--- /dev/null
+++ b/avr/1wire.h
@@ -0,0 +1,27 @@
+#ifndef _1wire_h_
+#define _1wire_h_
+#define MATCH_ROM	0x55
+#define SKIP_ROM	0xCC
+#define	SEARCH_ROM	0xF0
+
+#define CONVERT_T	0x44		// DS1820 commands
+#define READ		0xBE
+#define WRITE		0x4E
+#define EE_WRITE	0x48
+#define EE_RECALL	0xB8
+
+#define	SEARCH_FIRST	0xFF		// start new search
+#define	PRESENCE_ERR	0xFF
+#define	DATA_ERR	0xFE
+#define LAST_DEVICE	0x00		// last device found
+//			0x01 ... 0x40: continue searching
+
+uint8_t w1_reset(void);
+
+uint8_t w1_byte_wr( uint8_t b );
+uint8_t w1_byte_rd( void );
+
+uint8_t w1_rom_search( uint8_t diff, uint8_t idata *id );
+
+void w1_command( uint8_t command, uint8_t idata *id );
+#endif
diff --git a/LICENSE b/avr/LICENSE
index 94a9ed0..94a9ed0 100644
--- a/LICENSE
+++ b/avr/LICENSE
diff --git a/Makefile b/avr/Makefile
index 4335bc9..13bdd94 100644
--- a/Makefile
+++ b/avr/Makefile
@@ -371,13 +371,13 @@ all: begin directories gccversion sizebefore build sizeafter end
 directories: .dep obj obj/usbdrv
 
 .dep:
-	mkdir .dep
+	mkdir -p .dep
 
 obj:
-	mkdir obj
+	mkdir -p obj
 
-obj/usbdrv: obj
-	mkdir obj/usbdrv
+obj/usbdrv:
+	mkdir -p obj/usbdrv
 
 # Change the build target to build a HEX file or a library.
 build: elf hex eep lss sym
@@ -433,6 +433,8 @@ program: $(TARGET).hex $(TARGET).eep
 	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)
 	$(AVRDUDE_WRITE_EEPROM)
 
+usbboot: $(TARGET).hex
+	/home/flo/kruschkram/hass/avrusbboot.2006-06-25/software/avrusbboot $(TARGET).hex
 
 # Generate avr-gdb config/init file which does the following:
 #     define the reset signal, load the target file, connect to target, and set 
diff --git a/README b/avr/README
index 16c75d9..16c75d9 100644
--- a/README
+++ b/avr/README
diff --git a/avr/main.c b/avr/main.c
new file mode 100644
index 0000000..d350637
--- /dev/null
+++ b/avr/main.c
@@ -0,0 +1,164 @@
+/*
+    Project: DS1992 memory iButton dumper
+    Author: Florian Jung (flo@windfisch.org)
+    Copyright: (c) 2015 by Florian Jung
+    License: GNU GPL v3 (see LICENSE)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License version 3 as 
+    published by the Free Software Foundation.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+    This project is based on the code for the AVR ATtiny USB Tutorial at
+    http://codeandlife.com/ by Joonas Pihlajamaa, joonas.pihlajamaa@iki.fi,
+    which is in turn based on the V-USB example code by Christian Starkjohann
+    (Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH)
+*/
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/wdt.h>
+#include <avr/eeprom.h>
+#include <util/delay.h>
+#include <string.h>
+
+#include "usbdrv/usbdrv.h"
+
+
+#define LED_BLUE (1<<5)
+#define LED_RED (1<<4)
+#define LED_GREEN (1<<3)
+
+
+#define FUNC_READ 0x42
+#define FUNC_WRITE 0x21
+
+#define FUNC_START_BOOTLOADER		30
+#define FUNC_GET_TYPE				0xFE
+
+void jump_to_bootloader(void)
+{
+	cli();
+	wdt_enable(WDTO_15MS);
+	while (1);
+}
+
+static uchar replyBuffer[130]="Hello world initial";
+usbMsgLen_t usbFunctionSetup(uchar data[8])
+{
+	usbRequest_t *rq = (void *) data;
+	int len = 1;
+
+	switch (rq->bRequest)
+	{
+		case FUNC_GET_TYPE:
+			replyBuffer[0]=10;
+			len = 1;
+			break;
+		case FUNC_START_BOOTLOADER:
+			jump_to_bootloader();
+			len = 0;
+			break;
+		case FUNC_READ:
+			return USB_NO_MSG;
+		
+		case FUNC_WRITE:
+			PORTC ^= LED_RED;
+			//strcpy(replyBuffer, "Hello world");
+			len = strlen(replyBuffer)+1;
+			break;
+	}
+
+	usbMsgPtr = replyBuffer;
+	return len;
+}
+
+volatile int count = 5;
+
+uchar usbFunctionWrite(uint8_t * data, uchar len)
+{
+	memcpy(replyBuffer,data,len);
+	replyBuffer[len]='\0';
+
+	return len;
+}
+
+
+
+void usb_disconnect()
+{
+	USB_INTR_ENABLE &= ~(1 << USB_INTR_ENABLE_BIT);
+	usbDeviceDisconnect();
+}
+
+void usb_reconnect()
+{
+	cli();
+	usbDeviceDisconnect();		// enforce re-enumeration
+	for (int i = 0; i < 250; i++)
+	{							// wait 500 ms
+		wdt_reset();			// keep the watchdog happy
+		_delay_ms(10);
+	}
+	usbDeviceConnect();
+	USB_INTR_ENABLE |= (1 << USB_INTR_ENABLE_BIT);
+	sei();
+}
+
+
+int main(void)
+{
+	uint32_t c = 0;
+
+	DDRC = 0x38;   // LEDs as output
+	PORTC |= LED_BLUE | LED_RED | LED_GREEN;
+	DDRD &= ~0xF3; // connector ports as input
+	DDRB &= ~0x3C;
+	PORTD &= ~0xF3; // disable pullups for unused ports
+	PORTB &= ~0x0C;
+	PORTB |= 0x30; // enable pullups for PB4 and 5
+
+	cli();
+
+	wdt_enable(WDTO_1S);		// enable 1s watchdog timer
+
+	usbInit();
+
+	usbDeviceDisconnect();		// enforce re-enumeration
+	for (int i = 0; i < 250; i++)
+	{							// wait 500 ms
+		wdt_reset();			// keep the watchdog happy
+		_delay_ms(10);
+	}
+	usbDeviceConnect();
+
+	sei();						// Enable interrupts after re-enumeration
+
+	while (1)
+	{
+		wdt_reset();			// keep the watchdog happy
+		usbPoll();
+
+		if (++c % 3000 == 0) PORTC^=LED_BLUE;
+		/*if ( (c / 3000) % 40 == 0)
+		{
+			PORTC &= ~LED_RED;
+			usb_disconnect();
+		}
+		else if ((c / 3000) % 40 == 20)
+		{
+			usb_reconnect();
+			PORTC |= LED_RED;
+		}*/
+	}
+
+	jump_to_bootloader();
+	return 0;
+}
diff --git a/avr/main_jtag.c b/avr/main_jtag.c
new file mode 100644
index 0000000..b5142d4
--- /dev/null
+++ b/avr/main_jtag.c
@@ -0,0 +1,198 @@
+/************************************************************************************************

+ * Project: USB AVR-ISP

+ * Author: Christian Ulrich

+ * Contact: christian at ullihome dot de

+ *

+ * Creation Date: 2008-12-10

+ * Copyright: (c) 2008 by Christian Ulrich

+ * License: GPLv2 for private use

+ *	        commercial use prohibited

+ *

+ * Changes:

+ ***********************************************************************************************/

+

+#include <avr/io.h>

+#include <avr/interrupt.h>

+#include <stdio.h>

+#include <string.h>

+#include <stdlib.h>

+#include <avr/pgmspace.h>

+#include <avr/eeprom.h>

+#include <util/delay.h>

+#include <avr/wdt.h>

+#include "usbdrv.h"

+#include "usbconfig.h"

+#include "led.h"

+#include "timer.h"

+#include "main.h"

+#include "jtag.h"

+

+#define FUNC_READ_CHAIN 			1

+#define FUNC_WRITE_CHAIN 			2

+#define FUNC_TAP_STATE  			3

+#define FUNC_GET_TAP_STATE 			4

+#define FUNC_OPEN 					5

+#define FUNC_CLOSE 					6

+#define FUNC_SHIFTBITS 				7

+#define FUNC_CHAINSIZE 				8

+#define FUNC_EXECCHAIN				9

+

+#define FUNC_START_BOOTLOADER		30

+#define FUNC_GET_TYPE				0xFE

+

+#define STATE_IDLE					0

+#define STATE_READ					1

+#define STATE_WRITE					2

+

+uint8_t usb_state = STATE_IDLE;

+

+#ifndef USBASP_COMPATIBLE

+led_t leds[] =  {{4,LED_OFF,LED_OFF},

+	{3,LED_OFF,LED_OFF},

+	{5,LED_OFF,LED_OFF}

+};

+#else

+led_t leds[] =  {{0,LED_OFF,LED_OFF},

+	{1,LED_OFF,LED_OFF},

+	{3,LED_OFF,LED_OFF}

+};

+#endif

+const uint8_t led_count = sizeof(leds)/sizeof(led_t);

+

+

+#define MAX_CHAINSIZE 	900

+unsigned char JTAG_CHAIN[MAX_CHAINSIZE];

+unsigned int chainpos = 0;

+

+int main(void)

+{

+	extern uchar usbNewDeviceAddr;

+	uint8_t i;

+	PORTC |= (1<<PC2);

+//Reconnect USB

+	usbDeviceDisconnect();  /* enforce re-enumeration, do this while interrupts are disabled! */

+	i = 0;

+	while(--i)

+		_delay_ms(2);

+	usbDeviceConnect();

+	usbInit();

+	sei();

+

+

+	leds[LED_RED].frequency = LED_ON;

+	LED_init();

+	for (i=0; i<3; i++)

+		TIMER_delay(250);

+	leds[LED_RED].frequency = LED_OFF;

+

+	while(1)

+	{

+		usbPoll();

+		LED_poll();

+		if(usbNewDeviceAddr)

+			leds[LED_BLUE].frequency = LED_ON;

+	}

+}

+

+static uchar replyBuffer[8];

+

+uint8_t usbFunctionSetup(uint8_t data[8])

+{

+	uchar len = 0;

+

+	usb_state = STATE_IDLE;

+	if(data[1] == FUNC_GET_TYPE)

+	{

+		replyBuffer[0] = 10;

+		len = 1;

+	}

+	else if(data[1] == FUNC_START_BOOTLOADER)

+	{

+		cli();

+		wdt_enable(WDTO_15MS);

+		while(1);

+		len = 0;

+	}

+	else if(data[1] == FUNC_READ_CHAIN)

+	{

+		chainpos = 0;

+		usb_state = STATE_READ;

+		len = 0xff;

+	}

+	else if(data[1] == FUNC_WRITE_CHAIN)

+	{

+		chainpos = 0;

+		usb_state = STATE_WRITE;

+		len = 0xff;

+	}

+	else if(data[1] == FUNC_TAP_STATE)

+	{

+		JTAG_goto_tap_state(data[2]);

+		len = 0;

+	}

+	else if(data[1] == FUNC_GET_TAP_STATE)

+	{

+		replyBuffer[0] = JTAG_TAP_STATE;

+		len = 1;

+	}

+	else if(data[1] == FUNC_OPEN)

+	{

+		leds[LED_BLUE].frequency = LED_ON;

+		JTAG_attatch();

+		len = 0;

+	}

+	else if(data[1] == FUNC_CLOSE)

+	{

+		leds[LED_BLUE].frequency = LED_OFF;

+		JTAG_detatch();

+		len = 0;

+	}

+	else if(data[1] == FUNC_SHIFTBITS)

+	{

+		replyBuffer[0] = JTAG_shift_bits(data[2],data[3]);

+		len = 1;

+	}

+	else if(data[1] == FUNC_CHAINSIZE)

+	{

+		replyBuffer[0] = chainpos;

+		replyBuffer[1] = chainpos>>8;

+		len = 2;

+	}

+	else if (data[1] == FUNC_EXECCHAIN)

+	{

+		/*	  unsigned char i;

+		      for (i = 0; i < len / 2; i++)

+		        {

+		          unsigned char z = JTAG_CHAIN[i];

+		          JTAG_CHAIN[i] = JTAG_CHAIN[len - i - 1];

+		          JTAG_CHAIN[len - i - 1] = z;

+		        }*/

+		JTAG_shift_bytes(JTAG_CHAIN,chainpos);

+		leds[LED_GREEN].counter = 10;

+		leds[LED_GREEN].frequency = LED_FLASH_NEG;

+	}

+	leds[LED_BLUE].counter = 10;

+	leds[LED_BLUE].frequency = LED_FLASH_NEG;

+	usbMsgPtr = replyBuffer;

+	return len;

+}

+

+uint8_t usbFunctionRead( uint8_t *data, uint8_t len )

+{

+	if (usb_state != STATE_READ)

+		return 0xff;

+	uint8_t asize = 0;

+	memcpy(data,&JTAG_CHAIN[chainpos],len);

+	chainpos += len;

+	asize+=len;

+	return asize;

+}

+

+uint8_t usbFunctionWrite( uint8_t *data, uint8_t len )

+{

+	if (usb_state != STATE_WRITE)

+		return 0xff;

+	memcpy(&JTAG_CHAIN[chainpos],data,len);

+	chainpos += len;

+	return len;

+}

diff --git a/avr/main_jtag.c.orig b/avr/main_jtag.c.orig
new file mode 100644
index 0000000..70cccb7
--- /dev/null
+++ b/avr/main_jtag.c.orig
@@ -0,0 +1,196 @@
+/************************************************************************************************

+ * Project: USB AVR-ISP 

+ * Author: Christian Ulrich

+ * Contact: christian at ullihome dot de

+ *

+ * Creation Date: 2008-12-10

+ * Copyright: (c) 2008 by Christian Ulrich

+ * License: GPLv2 for private use

+ *	        commercial use prohibited 

+ *

+ * Changes:

+ ***********************************************************************************************/

+

+#include <avr/io.h>

+#include <avr/interrupt.h>

+#include <stdio.h>

+#include <string.h>

+#include <stdlib.h>

+#include <avr/pgmspace.h>

+#include <avr/eeprom.h>

+#include <util/delay.h>

+#include <avr/wdt.h>

+#include "usbdrv.h"

+#include "usbconfig.h"

+#include "led.h"

+#include "timer.h"

+#include "main.h"

+#include "jtag.h"

+

+#define FUNC_READ_CHAIN 			1

+#define FUNC_WRITE_CHAIN 			2

+#define FUNC_TAP_STATE  			3

+#define FUNC_GET_TAP_STATE 			4

+#define FUNC_OPEN 					5

+#define FUNC_CLOSE 					6

+#define FUNC_SHIFTBITS 				7

+#define FUNC_CHAINSIZE 				8

+#define FUNC_EXECCHAIN				9

+

+#define FUNC_START_BOOTLOADER		30

+#define FUNC_GET_TYPE				0xFE

+

+#define STATE_IDLE					0

+#define STATE_READ					1

+#define STATE_WRITE					2

+

+uint8_t usb_state = STATE_IDLE;

+

+#ifndef USBASP_COMPATIBLE

+led_t leds[] =  {{4,LED_OFF,LED_OFF},

+                 {3,LED_OFF,LED_OFF},

+                 {5,LED_OFF,LED_OFF}}; 

+#else

+led_t leds[] =  {{0,LED_OFF,LED_OFF},

+                 {1,LED_OFF,LED_OFF},

+                 {3,LED_OFF,LED_OFF}}; 

+#endif

+const uint8_t led_count = sizeof(leds)/sizeof(led_t);

+

+

+#define MAX_CHAINSIZE 	900

+unsigned char JTAG_CHAIN[MAX_CHAINSIZE];

+unsigned int chainpos = 0;

+

+int main(void)

+{

+  extern uchar usbNewDeviceAddr;

+  uint8_t i;

+  PORTC |= (1<<PC2);

+//Reconnect USB

+  usbDeviceDisconnect();  /* enforce re-enumeration, do this while interrupts are disabled! */

+  i = 0;

+  while(--i)

+     _delay_ms(2);

+  usbDeviceConnect();

+  usbInit();

+  sei();

+

+

+  leds[LED_RED].frequency = LED_ON;

+  LED_init();

+  for (i=0;i<3;i++)

+    TIMER_delay(250);

+  leds[LED_RED].frequency = LED_OFF;

+

+  while(1)

+    {

+      usbPoll();

+      LED_poll();

+      if(usbNewDeviceAddr)

+        leds[LED_BLUE].frequency = LED_ON;

+	}

+}

+

+static uchar replyBuffer[8];

+

+uint8_t usbFunctionSetup(uint8_t data[8])

+{

+  uchar len = 0;

+

+  usb_state = STATE_IDLE;

+  if(data[1] == FUNC_GET_TYPE)

+    {

+	  replyBuffer[0] = 10;

+	  len = 1;

+	}

+  else if(data[1] == FUNC_START_BOOTLOADER)

+    {

+      cli();

+	  wdt_enable(WDTO_15MS);

+      while(1);

+	  len = 0;

+	}

+  else if(data[1] == FUNC_READ_CHAIN)

+    {

+	  chainpos = 0;

+	  usb_state = STATE_READ;

+      len = 0xff;

+	}

+  else if(data[1] == FUNC_WRITE_CHAIN)

+    {

+	  chainpos = 0;

+	  usb_state = STATE_WRITE;

+      len = 0xff;

+	}

+  else if(data[1] == FUNC_TAP_STATE)

+    {

+	  JTAG_goto_tap_state(data[2]);

+	  len = 0;

+	}

+  else if(data[1] == FUNC_GET_TAP_STATE)

+    {

+	  replyBuffer[0] = JTAG_TAP_STATE;

+	  len = 1;

+	}

+  else if(data[1] == FUNC_OPEN)

+    {

+      leds[LED_BLUE].frequency = LED_ON;

+	  JTAG_attatch();

+	  len = 0;

+	}

+  else if(data[1] == FUNC_CLOSE)

+    {

+      leds[LED_BLUE].frequency = LED_OFF;

+	  JTAG_detatch();

+	  len = 0;

+	}

+  else if(data[1] == FUNC_SHIFTBITS)

+    {

+	  replyBuffer[0] = JTAG_shift_bits(data[2],data[3]);

+	  len = 1;

+	}

+  else if(data[1] == FUNC_CHAINSIZE)

+    {

+	  replyBuffer[0] = chainpos;

+	  replyBuffer[1] = chainpos>>8;

+	  len = 2;

+	}

+  else if (data[1] == FUNC_EXECCHAIN)

+    {

+/*	  unsigned char i;

+      for (i = 0; i < len / 2; i++)

+        {

+          unsigned char z = JTAG_CHAIN[i];

+          JTAG_CHAIN[i] = JTAG_CHAIN[len - i - 1];

+          JTAG_CHAIN[len - i - 1] = z;

+        }*/

+	  JTAG_shift_bytes(JTAG_CHAIN,chainpos);

+      leds[LED_GREEN].counter = 10;

+      leds[LED_GREEN].frequency = LED_FLASH_NEG;

+	}

+  leds[LED_BLUE].counter = 10;

+  leds[LED_BLUE].frequency = LED_FLASH_NEG;

+  usbMsgPtr = replyBuffer;

+  return len;

+}

+

+uint8_t usbFunctionRead( uint8_t *data, uint8_t len )

+{

+  if (usb_state != STATE_READ)

+    return 0xff;

+  uint8_t asize = 0;

+  memcpy(data,&JTAG_CHAIN[chainpos],len);

+  chainpos += len;

+  asize+=len;

+  return asize;

+}

+

+uint8_t usbFunctionWrite( uint8_t *data, uint8_t len )

+{

+  if (usb_state != STATE_WRITE)

+    return 0xff;

+  memcpy(&JTAG_CHAIN[chainpos],data,len);

+  chainpos += len;

+  return len;

+}

diff --git a/usbdrv/Changelog.txt b/avr/usbdrv/Changelog.txt
index 79b5215..79b5215 100644
--- a/usbdrv/Changelog.txt
+++ b/avr/usbdrv/Changelog.txt
diff --git a/usbdrv/CommercialLicense.txt b/avr/usbdrv/CommercialLicense.txt
index de1a2b0..de1a2b0 100644
--- a/usbdrv/CommercialLicense.txt
+++ b/avr/usbdrv/CommercialLicense.txt
diff --git a/usbdrv/License.txt b/avr/usbdrv/License.txt
index 4460cfb..4460cfb 100644
--- a/usbdrv/License.txt
+++ b/avr/usbdrv/License.txt
diff --git a/usbdrv/Readme.txt b/avr/usbdrv/Readme.txt
index 970dc66..970dc66 100644
--- a/usbdrv/Readme.txt
+++ b/avr/usbdrv/Readme.txt
diff --git a/usbdrv/USB-ID-FAQ.txt b/avr/usbdrv/USB-ID-FAQ.txt
index a4a6bd6..a4a6bd6 100644
--- a/usbdrv/USB-ID-FAQ.txt
+++ b/avr/usbdrv/USB-ID-FAQ.txt
diff --git a/usbdrv/USB-IDs-for-free.txt b/avr/usbdrv/USB-IDs-for-free.txt
index d46517d..d46517d 100644
--- a/usbdrv/USB-IDs-for-free.txt
+++ b/avr/usbdrv/USB-IDs-for-free.txt
diff --git a/usbdrv/asmcommon.inc b/avr/usbdrv/asmcommon.inc
index d2a4f7c..d2a4f7c 100644
--- a/usbdrv/asmcommon.inc
+++ b/avr/usbdrv/asmcommon.inc
diff --git a/usbdrv/oddebug.c b/avr/usbdrv/oddebug.c
index 19bf142..19bf142 100644
--- a/usbdrv/oddebug.c
+++ b/avr/usbdrv/oddebug.c
diff --git a/usbdrv/oddebug.h b/avr/usbdrv/oddebug.h
index 851f84d..851f84d 100644
--- a/usbdrv/oddebug.h
+++ b/avr/usbdrv/oddebug.h
diff --git a/usbdrv/usbconfig-prototype.h b/avr/usbdrv/usbconfig-prototype.h
index 93721c2..93721c2 100644
--- a/usbdrv/usbconfig-prototype.h
+++ b/avr/usbdrv/usbconfig-prototype.h
diff --git a/usbdrv/usbconfig.h b/avr/usbdrv/usbconfig.h
index c70f9a7..073a464 100644
--- a/usbdrv/usbconfig.h
+++ b/avr/usbdrv/usbconfig.h
@@ -228,7 +228,7 @@ extern void hadUsbReset(void); // define the function for usbdrv.c
  * with libusb: 0x16c0/0x5dc.  Use this VID/PID pair ONLY if you understand
  * the implications!
  */
-#define  USB_CFG_DEVICE_ID       0xdb, 0x27 /* = 0x27db = 'keyboard' */
+#define  USB_CFG_DEVICE_ID       0xdc, 0x05 /* = 0x27db = 'keyboard' */
 /* This is the ID of the product, low byte first. It is interpreted in the
  * scope of the vendor ID. If you have registered your own VID with usb.org
  * or if you have licensed a PID from somebody else, define it here. Otherwise
@@ -252,8 +252,8 @@ extern void hadUsbReset(void); // define the function for usbdrv.c
  * obdev's free shared VID/PID pair. See the file USB-IDs-for-free.txt for
  * details.
  */
-#define USB_CFG_DEVICE_NAME     'R', 'o', 't', 'a', 'r', 'y', ' ', 'D', 'i', 'a', 'l'
-#define USB_CFG_DEVICE_NAME_LEN 11
+#define USB_CFG_DEVICE_NAME     'D', 'S', '1', '9', '9', '2', ' ', 'D', 'u', 'm', 'p', 'e', 'r'
+#define USB_CFG_DEVICE_NAME_LEN 13
 /* Same as above for the device name. If you don't want a device name, undefine
  * the macros. See the file USB-IDs-for-free.txt before you assign a name if
  * you use a shared VID/PID.
@@ -267,20 +267,20 @@ extern void hadUsbReset(void); // define the function for usbdrv.c
  * to fine tune control over USB descriptors such as the string descriptor
  * for the serial number.
  */
-#define USB_CFG_DEVICE_CLASS        0    /* set to 0 if deferred to interface */
+#define USB_CFG_DEVICE_CLASS        0xff    /* set to 0 if deferred to interface */
 #define USB_CFG_DEVICE_SUBCLASS     0
 /* See USB specification if you want to conform to an existing device class.
  * Class 0xff is "vendor specific".
  */
-#define USB_CFG_INTERFACE_CLASS     0x03 // HID
-#define USB_CFG_INTERFACE_SUBCLASS  0x01 // Boot
-#define USB_CFG_INTERFACE_PROTOCOL  0x01 // Keyboard
+#define USB_CFG_INTERFACE_CLASS     0xff
+#define USB_CFG_INTERFACE_SUBCLASS  0x00
+#define USB_CFG_INTERFACE_PROTOCOL  0x00
 /* See USB specification if you want to conform to an existing device class or
  * protocol. The following classes must be set at interface level:
  * HID class is 3, no subclass and protocol required (but may be useful!)
  * CDC class is 2, use subclass 2 and protocol 1 for ACM
  */
-#define USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH    63
+#define USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH    0
 /* Define this to the length of the HID report descriptor, if you implement
  * an HID device. Otherwise don't define it or define it to 0.
  * If you use this define, you must add a PROGMEM character array named
diff --git a/usbdrv/usbdrv.c b/avr/usbdrv/usbdrv.c
index d838935..d838935 100644
--- a/usbdrv/usbdrv.c
+++ b/avr/usbdrv/usbdrv.c
diff --git a/usbdrv/usbdrv.h b/avr/usbdrv/usbdrv.h
index 3fe84d5..3fe84d5 100644
--- a/usbdrv/usbdrv.h
+++ b/avr/usbdrv/usbdrv.h
diff --git a/usbdrv/usbdrvasm.S b/avr/usbdrv/usbdrvasm.S
index 32ce8ef..32ce8ef 100644
--- a/usbdrv/usbdrvasm.S
+++ b/avr/usbdrv/usbdrvasm.S
diff --git a/usbdrv/usbdrvasm.asm b/avr/usbdrv/usbdrvasm.asm
index fb66934..fb66934 100644
--- a/usbdrv/usbdrvasm.asm
+++ b/avr/usbdrv/usbdrvasm.asm
diff --git a/usbdrv/usbdrvasm12.inc b/avr/usbdrv/usbdrvasm12.inc
index d3bd056..d3bd056 100644
--- a/usbdrv/usbdrvasm12.inc
+++ b/avr/usbdrv/usbdrvasm12.inc
diff --git a/usbdrv/usbdrvasm128.inc b/avr/usbdrv/usbdrvasm128.inc
index 8f67bcc..8f67bcc 100644
--- a/usbdrv/usbdrvasm128.inc
+++ b/avr/usbdrv/usbdrvasm128.inc
diff --git a/usbdrv/usbdrvasm15.inc b/avr/usbdrv/usbdrvasm15.inc
index 33bcf0e..33bcf0e 100644
--- a/usbdrv/usbdrvasm15.inc
+++ b/avr/usbdrv/usbdrvasm15.inc
diff --git a/usbdrv/usbdrvasm16.inc b/avr/usbdrv/usbdrvasm16.inc
index 25b84e6..25b84e6 100644
--- a/usbdrv/usbdrvasm16.inc
+++ b/avr/usbdrv/usbdrvasm16.inc
diff --git a/usbdrv/usbdrvasm165.inc b/avr/usbdrv/usbdrvasm165.inc
index ae91588..ae91588 100644
--- a/usbdrv/usbdrvasm165.inc
+++ b/avr/usbdrv/usbdrvasm165.inc
diff --git a/usbdrv/usbdrvasm18-crc.inc b/avr/usbdrv/usbdrvasm18-crc.inc
index 0ff2f42..0ff2f42 100644
--- a/usbdrv/usbdrvasm18-crc.inc
+++ b/avr/usbdrv/usbdrvasm18-crc.inc
diff --git a/usbdrv/usbdrvasm20.inc b/avr/usbdrv/usbdrvasm20.inc
index 5027edd..5027edd 100644
--- a/usbdrv/usbdrvasm20.inc
+++ b/avr/usbdrv/usbdrvasm20.inc
diff --git a/usbdrv/usbportability.h b/avr/usbdrv/usbportability.h
index 0a861d0..0a861d0 100644
--- a/usbdrv/usbportability.h
+++ b/avr/usbdrv/usbportability.h
diff --git a/main.c b/main.c
deleted file mode 100644
index bad8df1..0000000
--- a/main.c
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
-    Project: Rotary-Dial-To-USB Interface
-    Author: Florian Jung (flo@windfisch.org)
-    Copyright: (c) 2014 by Florian Jung and partially others (see below)
-    License: GNU GPL v3 (see LICENSE)
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License version 3 as 
-    published by the Free Software Foundation.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-
-    This project is based on the code for the AVR ATtiny USB Tutorial at
-    http://codeandlife.com/ by Joonas Pihlajamaa, joonas.pihlajamaa@iki.fi,
-    which is in turn based on the V-USB example code by Christian Starkjohann
-    (Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH)
-*/
-
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <avr/wdt.h>
-#include <avr/eeprom.h>
-#include <util/delay.h>
-
-#include "usbdrv/usbdrv.h"
-
-// ************************
-// *** USB HID ROUTINES ***
-// ************************
-
-// From Frank Zhao's USB Business Card project
-// http://www.frank-zhao.com/cache/usbbusinesscard_details.php
-PROGMEM const char
-	usbHidReportDescriptor[USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH] = {
-	0x05, 0x01,					// USAGE_PAGE (Generic Desktop)
-	0x09, 0x06,					// USAGE (Keyboard)
-	0xa1, 0x01,					// COLLECTION (Application)
-	0x75, 0x01,					//   REPORT_SIZE (1)
-	0x95, 0x08,					//   REPORT_COUNT (8)
-	0x05, 0x07,					//   USAGE_PAGE (Keyboard)(Key Codes)
-	0x19, 0xe0,					//   USAGE_MINIMUM (Keyboard LeftControl)(224)
-	0x29, 0xe7,					//   USAGE_MAXIMUM (Keyboard Right GUI)(231)
-	0x15, 0x00,					//   LOGICAL_MINIMUM (0)
-	0x25, 0x01,					//   LOGICAL_MAXIMUM (1)
-	0x81, 0x02,					//   INPUT (Data,Var,Abs) ; Modifier byte
-	0x95, 0x01,					//   REPORT_COUNT (1)
-	0x75, 0x08,					//   REPORT_SIZE (8)
-	0x81, 0x03,					//   INPUT (Cnst,Var,Abs) ; Reserved byte
-	0x95, 0x05,					//   REPORT_COUNT (5)
-	0x75, 0x01,					//   REPORT_SIZE (1)
-	0x05, 0x08,					//   USAGE_PAGE (LEDs)
-	0x19, 0x01,					//   USAGE_MINIMUM (Num Lock)
-	0x29, 0x05,					//   USAGE_MAXIMUM (Kana)
-	0x91, 0x02,					//   OUTPUT (Data,Var,Abs) ; LED report
-	0x95, 0x01,					//   REPORT_COUNT (1)
-	0x75, 0x03,					//   REPORT_SIZE (3)
-	0x91, 0x03,					//   OUTPUT (Cnst,Var,Abs) ; LED report padding
-	0x95, 0x06,					//   REPORT_COUNT (6)
-	0x75, 0x08,					//   REPORT_SIZE (8)
-	0x15, 0x00,					//   LOGICAL_MINIMUM (0)
-	0x25, 0x65,					//   LOGICAL_MAXIMUM (101)
-	0x05, 0x07,					//   USAGE_PAGE (Keyboard)(Key Codes)
-	0x19, 0x00,					//   USAGE_MINIMUM (Reserved (no event indicated))(0)
-	0x29, 0x65,					//   USAGE_MAXIMUM (Keyboard Application)(101)
-	0x81, 0x00,					//   INPUT (Data,Ary,Abs)
-	0xc0						// END_COLLECTION
-};
-
-typedef struct
-{
-	uint8_t modifier;
-	uint8_t reserved;
-	uint8_t keycode[6];
-} keyboard_report_t;
-
-static keyboard_report_t keyboard_report;	// sent to PC
-volatile static uchar LED_state = 0xff;	// received from PC
-static uchar idleRate;			// repeat rate for keyboards
-
-
-#define LED_BLUE (1<<5)
-#define LED_RED (1<<4)
-#define LED_GREEN (1<<3)
-
-usbMsgLen_t usbFunctionSetup(uchar data[8])
-{
-	usbRequest_t *rq = (void *) data;
-
-	if ((rq->bmRequestType & USBRQ_TYPE_MASK) == USBRQ_TYPE_CLASS)
-	{
-		switch (rq->bRequest)
-		{
-			case USBRQ_HID_GET_REPORT:	// send "no keys pressed" if asked here
-				// wValue: ReportType (highbyte), ReportID (lowbyte)
-				usbMsgPtr = (void *) &keyboard_report;	// we only have this one
-				keyboard_report.modifier = 0;
-				keyboard_report.keycode[0] = 0;
-				return sizeof(keyboard_report);
-
-			case USBRQ_HID_SET_REPORT:	// if wLength == 1, should be LED state
-				return (rq->wLength.word == 1) ? USB_NO_MSG : 0;
-			
-			case USBRQ_HID_GET_IDLE:	// send idle rate to PC as required by spec
-				usbMsgPtr = &idleRate;
-				return 1;
-			
-			case USBRQ_HID_SET_IDLE:	// save idle rate as required by spec
-				idleRate = rq->wValue.bytes[1];
-				return 0;
-		}
-	}
-
-	return 0;					// by default don't return any data
-}
-
-usbMsgLen_t usbFunctionWrite(uint8_t * data, uchar len)
-{
-	if (data[0] == LED_state)
-		return 1;
-	else
-		LED_state = data[0];
-
-	return 1;					// Data read, not expecting more
-}
-
-// Now only supports letters 'a' to 'z' and 0 (NULL) to clear buttons
-void buildReport(int n)
-{
-	keyboard_report.modifier = 0;
-
-	if (n > 0 && n <= 10)
-		keyboard_report.keycode[0] = 29+n;
-	else if (n == 0)
-		keyboard_report.keycode[0] = 39;
-	else if (n == -2)
-		keyboard_report.keycode[0] = 40; // enter
-	else if (n == -1)
-		keyboard_report.keycode[0] = 0;
-}
-
-#define STATE_WAIT 0
-#define STATE_SEND_KEY 1
-#define STATE_RELEASE_KEY 2
-
-void jump_to_bootloader(void)
-{
-	cli();
-	wdt_enable(WDTO_15MS);
-	while (1);
-}
-
-
-#define DEBOUNCE_MAX 100
-uint8_t idle_stable = 42;
-uint8_t pulse_stable = 42;
-uint16_t idlectr = DEBOUNCE_MAX;
-uint16_t pulsectr = DEBOUNCE_MAX;
-
-uint8_t oldidle = 42;
-uint8_t oldpulse = 42;
-
-int main()
-{
-	int key_to_send;
-	int n_pulses = 0;
-
-	uchar i, button_release_counter = 0, state = STATE_WAIT;
-
-	DDRC = 0x38;   // LEDs as output
-	PORTC |= LED_BLUE | LED_RED | LED_GREEN;
-	DDRD &= ~0xF3; // connector ports as input
-	DDRB &= ~0x3C;
-	PORTD &= ~0xF3; // disable pullups for unused ports
-	PORTB &= ~0x0C;
-	PORTB |= 0x30; // enable pullups for PB4 and 5
-
-	cli();
-
-	for (i = 0; i < sizeof(keyboard_report); i++)	// clear report initially
-		((uchar *) & keyboard_report)[i] = 0;
-
-	wdt_enable(WDTO_1S);		// enable 1s watchdog timer
-
-	usbInit();
-
-	usbDeviceDisconnect();		// enforce re-enumeration
-	for (i = 0; i < 250; i++)
-	{							// wait 500 ms
-		wdt_reset();			// keep the watchdog happy
-		_delay_ms(10);
-	}
-	usbDeviceConnect();
-
-	sei();						// Enable interrupts after re-enumeration
-	uint32_t j;
-
-	while (1)
-	{
-		wdt_reset();			// keep the watchdog happy
-		usbPoll();
-
-
-		// characters are sent when messageState == STATE_SEND and after receiving
-		// the initial LED state from PC (good way to wait until device is recognized)
-		
-		int idle = (PINB & 0x10);
-		int pulse = (PINB & 0x20);
-
-		if (idle != idle_stable)
-		{
-			idlectr++;
-			if (idlectr > DEBOUNCE_MAX)
-				idle_stable = idle;
-		}
-		else
-			idlectr=0;
-		
-		if (pulse != pulse_stable)
-		{
-			pulsectr++;
-			if (pulsectr > DEBOUNCE_MAX)
-				pulse_stable = pulse;
-		}
-		else
-			pulsectr=0;
-
-		if (pulse_stable)
-			PORTC &= ~LED_RED;
-		else
-			PORTC |= LED_RED; 
-
-		if (idle_stable)
-			PORTC |= LED_GREEN;
-		else
-			PORTC &= ~LED_GREEN;
-
-
-		if (oldidle == 42) // init
-		{
-			oldidle = idle_stable;
-			oldpulse = pulse_stable;
-		}
-
-		if (oldidle && !idle_stable)
-			n_pulses = 0;
-
-		if (!oldidle == 0 && idle_stable)
-		{
-			if (n_pulses > 17)
-				jump_to_bootloader();
-
-			// also check if some time has elapsed since last button press
-			if (state == STATE_WAIT && button_release_counter == 255)
-			{
-				if (n_pulses >= 1 && n_pulses <=10)
-				{
-					state = STATE_SEND_KEY;
-					key_to_send = n_pulses;
-				}
-			}
-
-			button_release_counter = 0;	// now button needs to be released a while until retrigger
-
-		}
-
-		if (!oldpulse && pulse_stable)
-			n_pulses++;
-
-		oldidle = idle_stable;
-		oldpulse = pulse_stable;
-
-		
-		if (button_release_counter < 255)
-			button_release_counter++;	// increase release counter
-			
-		
-		
-		if (usbInterruptIsReady() && state != STATE_WAIT && LED_state != 0xff)
-		{
-			switch (state)
-			{
-				case STATE_SEND_KEY:
-					buildReport(key_to_send);
-					state = STATE_RELEASE_KEY;	// release next
-					PORTC &= ~LED_BLUE;
-					break;
-				
-				case STATE_RELEASE_KEY:
-					buildReport(-1);
-					state = STATE_WAIT;	// go back to waiting
-					PORTC |= LED_BLUE;
-					break;
-				
-				default:
-					state = STATE_WAIT;	// should not happen
-			}
-
-			// start sending
-			usbSetInterrupt((void *) &keyboard_report, sizeof(keyboard_report));
-		}
-	}
-
-	jump_to_bootloader();
-	return 0;
-}
diff --git a/pc/a.out b/pc/a.out
new file mode 100755
index 0000000..f1b6c1b
--- /dev/null
+++ b/pc/a.out
diff --git a/pc/main.c b/pc/main.c
new file mode 100644
index 0000000..fe0d75d
--- /dev/null
+++ b/pc/main.c
@@ -0,0 +1,134 @@
+/* Name: set-led.c
+ * Project: custom-class, a basic USB example
+ * Author: Christian Starkjohann
+ * Creation Date: 2008-04-10
+ * Tabsize: 4
+ * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
+ * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
+ */
+
+/*
+General Description:
+This is the host-side driver for the custom-class example device. It searches
+the USB for the LEDControl device and sends the requests understood by this
+device.
+This program must be linked with libusb on Unix and libusb-win32 on Windows.
+See http://libusb.sourceforge.net/ or http://libusb-win32.sourceforge.net/
+respectively.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <usb.h>        /* this is libusb */
+#include "opendevice.h" /* common code moved to separate module */
+
+#include "../firmware/requests.h"   /* custom request numbers */
+#include "../firmware/usbconfig.h"  /* device's VID/PID and names */
+
+static void usage(char *name)
+{
+    fprintf(stderr, "usage:\n");
+    fprintf(stderr, "  %s on ....... turn on LED\n", name);
+    fprintf(stderr, "  %s off ...... turn off LED\n", name);
+    fprintf(stderr, "  %s status ... ask current status of LED\n", name);
+#if ENABLE_TEST
+    fprintf(stderr, "  %s test ..... run driver reliability test\n", name);
+#endif /* ENABLE_TEST */
+}
+
+int main(int argc, char **argv)
+{
+usb_dev_handle      *handle = NULL;
+const unsigned char rawVid[2] = {USB_CFG_VENDOR_ID}, rawPid[2] = {USB_CFG_DEVICE_ID};
+char                vendor[] = {USB_CFG_VENDOR_NAME, 0}, product[] = {USB_CFG_DEVICE_NAME, 0};
+char                buffer[4];
+int                 cnt, vid, pid, isOn;
+
+    usb_init();
+    if(argc < 2){   /* we need at least one argument */
+        usage(argv[0]);
+        exit(1);
+    }
+    /* compute VID/PID from usbconfig.h so that there is a central source of information */
+    vid = rawVid[1] * 256 + rawVid[0];
+    pid = rawPid[1] * 256 + rawPid[0];
+    /* The following function is in opendevice.c: */
+    if(usbOpenDevice(&handle, vid, vendor, pid, product, NULL, NULL, NULL) != 0){
+        fprintf(stderr, "Could not find USB device \"%s\" with vid=0x%x pid=0x%x\n", product, vid, pid);
+        exit(1);
+    }
+    /* Since we use only control endpoint 0, we don't need to choose a
+     * configuration and interface. Reading device descriptor and setting a
+     * configuration and interface is done through endpoint 0 after all.
+     * However, newer versions of Linux require that we claim an interface
+     * even for endpoint 0. Enable the following code if your operating system
+     * needs it: */
+#if 0
+    int retries = 1, usbConfiguration = 1, usbInterface = 0;
+    if(usb_set_configuration(handle, usbConfiguration) && showWarnings){
+        fprintf(stderr, "Warning: could not set configuration: %s\n", usb_strerror());
+    }
+    /* now try to claim the interface and detach the kernel HID driver on
+     * Linux and other operating systems which support the call. */
+    while((len = usb_claim_interface(handle, usbInterface)) != 0 && retries-- > 0){
+#ifdef LIBUSB_HAS_DETACH_KERNEL_DRIVER_NP
+        if(usb_detach_kernel_driver_np(handle, 0) < 0 && showWarnings){
+            fprintf(stderr, "Warning: could not detach kernel driver: %s\n", usb_strerror());
+        }
+#endif
+    }
+#endif
+
+    if(strcasecmp(argv[1], "status") == 0){
+        cnt = usb_control_msg(handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, CUSTOM_RQ_GET_STATUS, 0, 0, buffer, sizeof(buffer), 5000);
+        if(cnt < 1){
+            if(cnt < 0){
+                fprintf(stderr, "USB error: %s\n", usb_strerror());
+            }else{
+                fprintf(stderr, "only %d bytes received.\n", cnt);
+            }
+        }else{
+            printf("LED is %s\n", buffer[0] ? "on" : "off");
+        }
+    }else if((isOn = (strcasecmp(argv[1], "on") == 0)) || strcasecmp(argv[1], "off") == 0){
+        cnt = usb_control_msg(handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT, CUSTOM_RQ_SET_STATUS, isOn, 0, buffer, 0, 5000);
+        if(cnt < 0){
+            fprintf(stderr, "USB error: %s\n", usb_strerror());
+        }
+#if ENABLE_TEST
+    }else if(strcasecmp(argv[1], "test") == 0){
+        int i;
+        srandomdev();
+        for(i = 0; i < 50000; i++){
+            int value = random() & 0xffff, index = random() & 0xffff;
+            int rxValue, rxIndex;
+            if((i+1) % 100 == 0){
+                fprintf(stderr, "\r%05d", i+1);
+                fflush(stderr);
+            }
+            cnt = usb_control_msg(handle, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, CUSTOM_RQ_ECHO, value, index, buffer, sizeof(buffer), 5000);
+            if(cnt < 0){
+                fprintf(stderr, "\nUSB error in iteration %d: %s\n", i, usb_strerror());
+                break;
+            }else if(cnt != 4){
+                fprintf(stderr, "\nerror in iteration %d: %d bytes received instead of 4\n", i, cnt);
+                break;
+            }
+            rxValue = ((int)buffer[0] & 0xff) | (((int)buffer[1] & 0xff) << 8);
+            rxIndex = ((int)buffer[2] & 0xff) | (((int)buffer[3] & 0xff) << 8);
+            if(rxValue != value || rxIndex != index){
+                fprintf(stderr, "\ndata error in iteration %d:\n", i);
+                fprintf(stderr, "rxValue = 0x%04x value = 0x%04x\n", rxValue, value);
+                fprintf(stderr, "rxIndex = 0x%04x index = 0x%04x\n", rxIndex, index);
+            }
+        }
+        fprintf(stderr, "\nTest completed.\n");
+#endif /* ENABLE_TEST */
+    }else{
+        usage(argv[0]);
+        exit(1);
+    }
+    usb_close(handle);
+    return 0;
+}
diff --git a/pc/usbtest.c b/pc/usbtest.c
new file mode 100644
index 0000000..002add4
--- /dev/null
+++ b/pc/usbtest.c
@@ -0,0 +1,199 @@
+/**
+ * Project: AVR ATtiny USB Tutorial at http://codeandlife.com/
+ * Author: Joonas Pihlajamaa, joonas.pihlajamaa@iki.fi
+ * Based on V-USB example code by Christian Starkjohann
+ * Copyright: (C) 2012 by Joonas Pihlajamaa
+ * License: GNU GPL v3 (see License.txt)
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <usb.h>
+
+// used to get descriptor strings for device identification
+static int usbGetDescriptorString(usb_dev_handle *dev, int index, int langid,
+                                  char *buf, int buflen)
+{
+	char buffer[256];
+	int rval, i;
+
+	// make standard request GET_DESCRIPTOR, type string and given index
+	// (e.g. dev->iProduct)
+	rval = usb_control_msg(dev,
+	                       USB_TYPE_STANDARD | USB_RECIP_DEVICE | USB_ENDPOINT_IN,
+	                       USB_REQ_GET_DESCRIPTOR, (USB_DT_STRING << 8) + index, langid,
+	                       buffer, sizeof(buffer), 1000);
+
+	if(rval < 0) // error
+		return rval;
+
+	// rval should be bytes read, but buffer[0] contains the actual response size
+	if((unsigned char)buffer[0] < rval)
+		rval = (unsigned char)buffer[0]; // string is shorter than bytes read
+
+	if(buffer[1] != USB_DT_STRING) // second byte is the data type
+		return 0; // invalid return type
+
+	// we're dealing with UTF-16LE here so actual chars is half of rval,
+	// and index 0 doesn't count
+	rval /= 2;
+
+	// lossy conversion to ISO Latin1
+	for(i = 1; i < rval && i < buflen; i++)
+	{
+		if(buffer[2 * i + 1] == 0)
+			buf[i-1] = buffer[2 * i];
+		else
+			buf[i-1] = '?'; // outside of ISO Latin1 range
+	}
+	buf[i-1] = 0;
+
+	return i-1;
+}
+
+static usb_dev_handle * usbOpenDevice(int vendor, char *vendorName,
+                                      int product, char *productName)
+{
+	struct usb_bus *bus;
+	struct usb_device *dev;
+	char devVendor[256], devProduct[256];
+
+	usb_dev_handle * handle = NULL;
+
+	usb_set_debug(3);
+
+	usb_init();
+	usb_find_busses();
+	usb_find_devices();
+
+	for(bus=usb_get_busses(); bus; bus=bus->next)
+	{
+		for(dev=bus->devices; dev; dev=dev->next)
+		{
+			if(dev->descriptor.idVendor != vendor ||
+			        dev->descriptor.idProduct != product)
+				continue;
+
+			// we need to open the device in order to query strings
+			if(!(handle = usb_open(dev)))
+			{
+				fprintf(stderr, "Warning: cannot open USB device: %s\n",
+				        usb_strerror());
+				continue;
+			}
+
+			// get vendor name
+			if(usbGetDescriptorString(handle, dev->descriptor.iManufacturer, 0x0409, devVendor, sizeof(devVendor)) < 0)
+			{
+				fprintf(stderr,
+				        "Warning: cannot query manufacturer for device: %s\n",
+				        usb_strerror());
+				usb_close(handle);
+				continue;
+			}
+
+			// get product name
+			if(usbGetDescriptorString(handle, dev->descriptor.iProduct,
+			                          0x0409, devProduct, sizeof(devVendor)) < 0)
+			{
+				fprintf(stderr,
+				        "Warning: cannot query product for device: %s\n",
+				        usb_strerror());
+				usb_close(handle);
+				continue;
+			}
+
+			if(strcmp(devVendor, vendorName) == 0 &&
+			        strcmp(devProduct, productName) == 0)
+				return handle;
+			else
+				usb_close(handle);
+		}
+	}
+
+	return NULL;
+}
+
+int main(int argc, char **argv)
+{
+	usb_dev_handle *handle = NULL;
+	int nBytes = 0;
+	char buffer[256];
+
+	handle = usbOpenDevice(0x16C0, "windfisch.org", 0x05DC, "DS1992 Dumper");
+
+	if(handle == NULL)
+	{
+		fprintf(stderr, "Could not find USB device!\n");
+		exit(1);
+	}
+
+	printf("got device\n");
+	
+	// read from device
+	nBytes = usb_control_msg(handle, 
+		USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, 
+		0x21, 0, 0, (char *)buffer, sizeof(buffer), 1000);
+		printf("Got %d bytes: %s;\n", nBytes, buffer);
+
+	// write to device
+	nBytes = usb_control_msg(handle, 
+		USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT, 
+		0x42, 0, 0, "Tschuess", strlen("Tschuess"), 1000);
+		printf("Wrote %d bytes\n", nBytes);
+
+
+
+
+	// read from device
+	nBytes = usb_control_msg(handle, 
+		USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, 
+		0x21, 0, 0, (char *)buffer, sizeof(buffer), 1000);
+		printf("Got %d bytes: %s;\n", nBytes, buffer);
+
+/*
+
+	nBytes = usb_control_msg(handle, 
+		USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN, 
+		0x42, 0,0, 
+		(char *)buffer, sizeof(buffer), 5000);
+	if(strcmp(argv[1], "on") == 0)
+	{
+		nBytes = usb_control_msg(handle,
+		                         USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN,
+		                         USB_LED_ON, 0, 0, (char *)buffer, sizeof(buffer), 5000);
+	}
+	else if(strcmp(argv[1], "off") == 0)
+	{
+		nBytes = usb_control_msg(handle,
+		                         USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN,
+		                         USB_LED_OFF, 0, 0, (char *)buffer, sizeof(buffer), 5000);
+	}
+	else if(strcmp(argv[1], "out") == 0)
+	{
+		nBytes = usb_control_msg(handle,
+		                         USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN,
+		                         USB_DATA_OUT, 0, 0, (char *)buffer, sizeof(buffer), 5000);
+		printf("Got %d bytes: %s\n", nBytes, buffer);
+	}
+	else if(strcmp(argv[1], "write") == 0)
+	{
+		nBytes = usb_control_msg(handle,
+		                         USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_IN,
+		                         USB_DATA_WRITE, 'T' + ('E' << 8), 'S' + ('T' << 8),
+		                         (char *)buffer, sizeof(buffer), 5000);
+	}
+	else if(strcmp(argv[1], "in") == 0 && argc > 2)
+	{
+		nBytes = usb_control_msg(handle,
+		                         USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_ENDPOINT_OUT,
+		                         USB_DATA_IN, 0, 0, argv[2], strlen(argv[2])+1, 5000);
+	}
+*/
+	if(nBytes < 0)
+		fprintf(stderr, "USB error: %s\n", usb_strerror());
+
+	usb_close(handle);
+
+	return 0;
+}