/* initialize driver -- returns 1 on success, 0 on error */
static int ati_init()
{
struct usb_device *usb_dev;
int pipe_fd[2] = { -1, -1 };
LOGPRINTF(1, "initializing USB receiver");
init_rec_buffer();
/* A separate process will be forked to read data from the USB
* receiver and write it to a pipe. hw.fd is set to the readable
* end of this pipe. */
if (pipe(pipe_fd) != 0) {
logperror(LOG_ERR, "couldn't open pipe");
return 0;
}
hw.fd = pipe_fd[0];
usb_dev = find_usb_device();
if (usb_dev == NULL) {
logprintf(LOG_ERR, "couldn't find a compatible USB device");
return 0;
}
if (!find_device_endpoints(usb_dev)) {
logprintf(LOG_ERR, "couldn't find device endpoints");
return 0;
}
dev_handle = usb_open(usb_dev);
if (dev_handle == NULL) {
logperror(LOG_ERR, "couldn't open USB receiver");
goto fail;
}
if (usb_claim_interface(dev_handle, 0) != 0) {
logperror(LOG_ERR, "couldn't claim USB interface");
goto fail;
}
errno = 0;
if ((usb_interrupt_write(dev_handle, dev_ep_out->bEndpointAddress, init1, sizeof(init1), 100) != sizeof(init1))
|| (usb_interrupt_write(dev_handle, dev_ep_out->bEndpointAddress, init2, sizeof(init2), 100) !=
sizeof(init2))) {
logprintf(LOG_ERR, "couldn't initialize USB receiver: %s", errno ? strerror(errno) : "short write");
goto fail;
}
child = fork();
if (child == -1) {
logperror(LOG_ERR, "couldn't fork child process");
goto fail;
} else if (child == 0) {
usb_read_loop(pipe_fd[1]);
}
LOGPRINTF(1, "USB receiver initialized");
return 1;
fail:
if (dev_handle) {
usb_close(dev_handle);
dev_handle = NULL;
}
if (pipe_fd[0] >= 0)
close(pipe_fd[0]);
if (pipe_fd[1] >= 0)
close(pipe_fd[1]);
return 0;
}
/* initialize driver -- returns 1 on success, 0 on error */
static int awlibusb_init()
{
struct usb_device *usb_dev;
int pipe_fd[2] = { -1, -1 };
LOGPRINTF(1, "initializing USB receiver");
init_rec_buffer();
/* A separate process will be forked to read data from the USB
* receiver and write it to a pipe. drv.fd is set to the readable
* end of this pipe. */
if (pipe(pipe_fd) != 0) {
logperror(LIRC_ERROR, "couldn't open pipe");
return 0;
}
drv.fd = pipe_fd[0];
usb_dev = find_usb_device();
if (usb_dev == NULL) {
logprintf(LIRC_ERROR, "couldn't find a compatible USB device");
goto fail;
}
if (!find_device_endpoints(usb_dev)) {
logprintf(LIRC_ERROR, "couldn't find device endpoints");
goto fail;
}
dev_handle = usb_open(usb_dev);
if (dev_handle == NULL) {
logperror(LIRC_ERROR, "couldn't open USB receiver");
goto fail;
}
if (usb_claim_interface(dev_handle, 0) != 0) {
logperror(LIRC_ERROR, "couldn't claim USB interface");
goto fail;
}
child = fork();
if (child == -1) {
logperror(LIRC_ERROR, "couldn't fork child process");
goto fail;
} else if (child == 0) {
usb_read_loop(pipe_fd[1]);
}
LOGPRINTF(1, "USB receiver initialized");
return 1;
fail:
if (dev_handle) {
usb_close(dev_handle);
dev_handle = NULL;
}
if (pipe_fd[0] >= 0)
close(pipe_fd[0]);
if (pipe_fd[1] >= 0)
close(pipe_fd[1]);
return 0;
}