Allow reprogramming USB HID descriptor

[satoshinm]

Similar to #1, but allow the end user to change the HID descriptor arbitrarily

Hardcoded in

pill_duck/src/hid.h

Lines 41 to 111 in 7a0faf1

	static const uint8_t hid_report_descriptor[] = {
	0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
	0x09, 0x06, // Usage (Keyboard)
	0xA1, 0x01, // Collection (Application)
	0x85, 0x01, // Report ID (1)
	0x05, 0x07, // Usage Page (Kbrd/Keypad)
	0x19, 0xE0, // Usage Minimum (0xE0)
	0x29, 0xE7, // Usage Maximum (0xE7)
	0x15, 0x00, // Logical Minimum (0)
	0x25, 0x01, // Logical Maximum (1)
	0x75, 0x01, // Report Size (1)
	0x95, 0x08, // Report Count (8)
	0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
	0x81, 0x01, // Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
	0x19, 0x00, // Usage Minimum (0x00)
	0x29, 0x65, // Usage Maximum (0x65)
	0x15, 0x00, // Logical Minimum (0)
	0x25, 0x65, // Logical Maximum (101)
	0x75, 0x08, // Report Size (8)
	0x95, 0x06, // Report Count (6)
	0x81, 0x00, // Input (Data,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
	0x05, 0x08, // Usage Page (LEDs)
	0x19, 0x01, // Usage Minimum (Num Lock)
	0x29, 0x05, // Usage Maximum (Kana)
	0x15, 0x00, // Logical Minimum (0)
	0x25, 0x01, // Logical Maximum (1)
	0x75, 0x01, // Report Size (1)
	0x95, 0x05, // Report Count (5)
	0x91, 0x02, // Output (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
	0x95, 0x03, // Report Count (3)
	0x91, 0x01, // Output (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
	0xC0, // End Collection
	0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
	0x09, 0x02, // Usage (Mouse)
	0xA1, 0x01, // Collection (Application)
	0x85, 0x02, // Report ID (2)
	0x09, 0x01, // Usage (Pointer)
	0xA1, 0x00, // Collection (Physical)
	0x05, 0x09, // Usage Page (Button)
	0x19, 0x01, // Usage Minimum (0x01)
	0x29, 0x03, // Usage Maximum (0x03)
	0x15, 0x00, // Logical Minimum (0)
	0x25, 0x01, // Logical Maximum (1)
	0x95, 0x03, // Report Count (3)
	0x75, 0x01, // Report Size (1)
	0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
	0x95, 0x01, // Report Count (1)
	0x75, 0x05, // Report Size (5)
	0x81, 0x01, // Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
	0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
	0x09, 0x30, // Usage (X)
	0x09, 0x31, // Usage (Y)
	0x09, 0x38, // Usage (Wheel)
	0x15, 0x81, // Logical Minimum (-127)
	0x25, 0x7F, // Logical Maximum (127)
	0x75, 0x08, // Report Size (8)
	0x95, 0x03, // Report Count (3)
	0x81, 0x06, // Input (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position)
	0xC0, // End Collection
	0x09, 0x3C, // Usage (Motion Wakeup)
	0x05, 0xFF, // Usage Page (Reserved 0xFF)
	0x09, 0x01, // Usage (0x01)
	0x15, 0x00, // Logical Minimum (0)
	0x25, 0x01, // Logical Maximum (1)
	0x75, 0x01, // Report Size (1)
	0x95, 0x02, // Report Count (2)
	0xB1, 0x22, // Feature (Data,Var,Abs,No Wrap,Linear,No Preferred State,No Null Position,Non-volatile)
	0x75, 0x06, // Report Size (6)
	0x95, 0x01, // Report Count (1)
	0xB1, 0x01, // Feature (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
	0xC0, // End Collection

Frank Zhao has a USB Descriptor and Request parser at http://eleccelerator.com/usbdescreqparser/ (which is how this descriptor code was formatted, and it supports pasting the descriptor in then changing it)