usb_hid: Allow USB work to progress while waiting for tud_hid_ready

Otherwise, examples like the one attached to the related issue fail
because tud_hid_ready never returns true.

Testing performed: Adapted the example to nrf particle xenon (it was
handy), removed dependency on IR, verified that the problem occurred
before this change, and that it was fixed after this change.

Closes: #2048
crypto-aes
Jeff Epler 4 years ago
parent 47a0b7cba1
commit be5205d020

@ -47,7 +47,11 @@ void common_hal_usb_hid_device_send_report(usb_hid_device_obj_t *self, uint8_t*
// Wait until interface is ready, timeout = 2 seconds
uint64_t end_ticks = ticks_ms + 2000;
while ( (ticks_ms < end_ticks) && !tud_hid_ready() ) { }
while ( (ticks_ms < end_ticks) && !tud_hid_ready() ) {
#ifdef MICROPY_VM_HOOK_LOOP
MICROPY_VM_HOOK_LOOP;
#endif
}
if ( !tud_hid_ready() ) {
mp_raise_msg(&mp_type_OSError, translate("USB Busy"));

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