89 int rtlx_open(int index, int can_sleep)  in rtlx_open()  argument
96 	if (index >= RTLX_CHANNELS) {  in rtlx_open()
101 	if (atomic_inc_return(&channel_wqs[index].in_open) > 1) {  in rtlx_open()
102 		pr_debug("rtlx_open channel %d already opened\n", index);  in rtlx_open()
112 					channel_wqs[index].lx_queue,  in rtlx_open()
130 						&channel_wqs[index].lx_queue,  in rtlx_open()
142 				finish_wait(&channel_wqs[index].lx_queue,  in rtlx_open()
163 	chan = &rtlx->channel[index];  in rtlx_open()
173 	atomic_dec(&channel_wqs[index].in_open);  in rtlx_open()
180 int rtlx_release(int index)  in rtlx_release()  argument
186 	rtlx->channel[index].lx_state = RTLX_STATE_UNUSED;  in rtlx_release()
190 unsigned int rtlx_read_poll(int index, int can_sleep)  in rtlx_read_poll()  argument
197 	chan = &rtlx->channel[index];  in rtlx_read_poll()
203 				channel_wqs[index].lx_queue,  in rtlx_read_poll()
232 unsigned int rtlx_write_poll(int index)  in rtlx_write_poll()  argument
234 	struct rtlx_channel *chan = &rtlx->channel[index];  in rtlx_write_poll()
240 ssize_t rtlx_read(int index, void __user *buff, size_t count)  in rtlx_read()  argument
249 	lx = &rtlx->channel[index];  in rtlx_read()
251 	mutex_lock(&channel_wqs[index].mutex);  in rtlx_read()
277 	mutex_unlock(&channel_wqs[index].mutex);  in rtlx_read()
282 ssize_t rtlx_write(int index, const void __user *buffer, size_t count)  in rtlx_write()  argument
292 	rt = &rtlx->channel[index];  in rtlx_write()
294 	mutex_lock(&channel_wqs[index].mutex);  in rtlx_write()
319 	mutex_unlock(&channel_wqs[index].mutex);  in rtlx_write()