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atmel-samd: HID report descriptor for mouse had to be COMPILER_WORD_ALIGNED.

This commit is contained in:
Dan Halbert 2017-04-15 10:18:56 -04:00
parent b653c3c8fc
commit 2fe6b74e90
1 changed files with 6 additions and 0 deletions
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6
atmel-samd/asf/common/services/usb/class/hid/device/mouse/udi_hid_mouse.c
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@ -119,6 +119,12 @@ static bool udi_hid_mouse_setreport(void);
//@}
//! HID report descriptor for standard HID mouse
//*** CircuitPython: added COMPILER_WORD_ALIGNED to ensure descriptor is word aligned.
// Without this, descriptor sent to host was garbled.
// It appears this is necessary but frequently omitted in UDC_DESC_STORAGE declarations
// in ASF code.
// See comments about buffer alignment in asf/common/services/usb/udc/udd.h
COMPILER_WORD_ALIGNED
UDC_DESC_STORAGE udi_hid_mouse_report_desc_t udi_hid_mouse_report_desc = {
{
0x05, 0x01, /* Usage Page (Generic Desktop), */