test.c

这个是Linux下的应用程序

void save_image(uns16 x,uns16 y,uns16 h_size,uns16 v_size,uns16 reserved)
{
	rx_id=RxID(GID_OSD,0x00,PID_OSD_SAVE_IMG,W_FLAG);
	ioctl(at2042_fd, WRITE_Rx_FIFO, &rx_id);
	ioctl(at2042_fd, WRITE_Rx_FIFO, &x);
	ioctl(at2042_fd, WRITE_Rx_FIFO, &y);
	ioctl(at2042_fd, WRITE_Rx_FIFO, &h_size);
	ioctl(at2042_fd, WRITE_Rx_FIFO, &v_size);
	ioctl(at2042_fd, WRITE_Rx_FIFO, &reserved);
	ioctl(at2042_fd,END_OF_WRITE_Rx_FIFO);
}
void restore_image(uns16 reserved)
{
	rx_id=RxID(GID_OSD,0x00,PID_OSD_RESTORE_IMG,W_FLAG);
	ioctl(at2042_fd, WRITE_Rx_FIFO, &rx_id);
	ioctl(at2042_fd, WRITE_Rx_FIFO, &reserved);
	ioctl(at2042_fd,END_OF_WRITE_Rx_FIFO);
}