FreeCalypso > hg > freecalypso-tools
view libserial-newlnx/openport.c @ 495:06ad5e30e8d0
target-utils: wait_ARM_cycles() changed to 4 cycles per loop
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 25 May 2019 18:51:19 +0000 |
parents | 6984b76f3def |
children | 9d9c241f2c84 |
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/* * This module implements the basic serial port opening operation. */ #include <sys/types.h> #include <sys/file.h> #include <sys/ioctl.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> int target_fd; open_serial_port(ttyport) char *ttyport; { target_fd = open(ttyport, O_RDWR|O_NONBLOCK); if (target_fd < 0) { perror(ttyport); exit(1); } ioctl(target_fd, TIOCEXCL); return 0; }