composite hid keyboard/vendor device

General discussions about V-USB, our firmware-only implementation of a low speed USB device on Atmel's AVR microcontrollers
bakkoiq
Posts: 1
Joined: Mon Jun 13, 2016 1:39 am

composite hid keyboard/vendor device

Postby bakkoiq » Mon Jun 13, 2016 1:52 am

Hi :)
I'm currenlty working on composite hid device made of keyboard and custom vendor device (to receive data).
My keyboard part of this device is working perfectly, but when i add vendor part to descriptor (and change size of descriptor) it stops working (writing after pushing its buttons). That happens even before adding more complicated part of code, just after changing descriptor. I've tried changing vid/pid.
please help :cry:
that's my descriptor

Code: Select all

const PROGMEM char usbHidReportDescriptor[USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH] = {
    0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)
    0x09, 0x06,                    // USAGE (Keyboard)
    0xa1, 0x01,                    // COLLECTION (Application)
       0x85, 0x01,                    //   REPORT_ID (1)
    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)
    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
    // adding part below keeps device from working
       0x06, 0x00, 0xff,              // USAGE_PAGE (Generic Desktop)
    0x09, 0x01,                    // USAGE (Vendor Usage 1)
    0xa1, 0x01,                    // COLLECTION (Application)
    0x15, 0x00,                    //   LOGICAL_MINIMUM (0)
    0x26, 0xff, 0x00,              //   LOGICAL_MAXIMUM (255)
    0x75, 0x08,                    //   REPORT_SIZE (8)
    0x85, 0x01,                    //   REPORT_ID (1)
    0x95, 0x02,                    //   REPORT_COUNT (2)
    0x09, 0x00,                    //   USAGE (Undefined)
    0xb2, 0x02, 0x01,              //   FEATURE (Data,Var,Abs,Buf)
   0x15, 0x00,                    //   LOGICAL_MINIMUM (0)
    0x26, 0xff, 0x00,              //   LOGICAL_MAXIMUM (255)
    0x75, 0x08,                    //   REPORT_SIZE (8)
    0x85, 0x01,                    //   REPORT_ID (1)
    0x95, 0x02,                    //   REPORT_COUNT (2)
    0x09, 0x00,                    //   USAGE (Undefined)
    0xb2, 0x02, 0x01,              //   FEATURE (Data,Var,Abs,Buf)
   0xc0                           // END_COLLECTION

};

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