1 #include <util/delay.h>
2 #include <avr/interrupt.h>
7 int8_t usb_extra_send(uint8_t report_id, uint16_t data)
9 uint8_t intr_state, timeout;
11 if (!usb_configured()) return -1;
14 UENUM = EXTRA_ENDPOINT;
15 timeout = UDFNUML + 50;
17 // are we ready to transmit?
18 if (UEINTX & (1<<RWAL)) break;
20 // has the USB gone offline?
21 if (!usb_configured()) return -1;
22 // have we waited too long?
23 if (UDFNUML == timeout) return -1;
24 // get ready to try checking again
27 UENUM = EXTRA_ENDPOINT;
32 UEDATX = (data>>8)&0xFF;
39 int8_t usb_extra_consumer_send(uint16_t bits)
41 return usb_extra_send(REPORT_ID_CONSUMER, bits);
44 int8_t usb_extra_system_send(uint16_t bits)
46 return usb_extra_send(REPORT_ID_SYSTEM, bits);