#include "syscall.h" #include "debug.h" #include "serial.h" /* * Syscall handler for write, currently only serial write is supported. * Use the fd 1, to make a serial write. */ int write(int fd, void *buf) { if (fd != 1) return -1; if (write_serial(buf)) return -1; return 0; } /* * Syscall handler for keyboard input, this function is currently not implemented. */ int keyboard(void) { return 1; }