qmk_firmware/tmk_core/protocol/vusb/sendchar_usart.c

/*
 * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
 * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
 */
#include <stdint.h>
#include <usbdrv/oddebug.h>
#include "sendchar.h"

#if DEBUG_LEVEL > 0
/* from oddebug.c */
int8_t sendchar(uint8_t c) {
    while (!(ODDBG_USR & (1 << ODDBG_UDRE)))
        ; /* wait for data register empty */
    ODDBG_UDR = c;
    return 1;
}
#else
int8_t sendchar(uint8_t c) { return 1; }
#endif