#include #include #include #include void tty_init(void) { serial_preinit(); serial_write("<3 ", 3); } static void backend(void __attribute__((unused)) *arg, const char *buf, size_t len) { serial_write(buf, len); } int kprintf(const char *fmt, ...) { int ret; va_list argp; va_start(argp, fmt); ret = __printf_internal(fmt, argp, backend, NULL); va_end(argp); return ret; }