Lines Matching refs:fd
103 static void transfer(int fd, uint8_t const *tx, uint8_t const *rx, size_t len) in transfer() argument
131 ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr); in transfer()
255 int fd; in main() local
262 fd = open(device, O_RDWR); in main()
263 if (fd < 0) in main()
269 ret = ioctl(fd, SPI_IOC_WR_MODE32, &mode); in main()
273 ret = ioctl(fd, SPI_IOC_RD_MODE32, &mode); in main()
280 ret = ioctl(fd, SPI_IOC_WR_BITS_PER_WORD, &bits); in main()
284 ret = ioctl(fd, SPI_IOC_RD_BITS_PER_WORD, &bits); in main()
291 ret = ioctl(fd, SPI_IOC_WR_MAX_SPEED_HZ, &speed); in main()
295 ret = ioctl(fd, SPI_IOC_RD_MAX_SPEED_HZ, &speed); in main()
308 transfer(fd, tx, rx, size); in main()
312 transfer(fd, default_tx, default_rx, sizeof(default_tx)); in main()
315 close(fd); in main()