drivers/hid/hidraw.c

31 #include <linux/hidraw.h>
36 	.name = "hidraw",
38 static struct hidraw *hidraw_table[HIDRAW_MAX_DEVICES];
51 			add_wait_queue(&list->hidraw->wait, &wait);
59 				if (!list->hidraw->exist) {
76 			remove_wait_queue(&list->hidraw->wait, &wait);
254 	__poll_t mask = EPOLLOUT | EPOLLWRNORM; /* hidraw is always writable */
256 	poll_wait(file, &list->hidraw->wait, wait);
259 	if (!list->hidraw->exist)
267 	struct hidraw *dev;
304 	list->hidraw = hidraw_table[minor];
326 static void drop_ref(struct hidraw *hidraw, int exists_bit)
329 		hidraw->exist = 0;
330 		if (hidraw->open) {
331 			hid_hw_close(hidraw->hid);
332 			wake_up_interruptible(&hidraw->wait);
335 			       MKDEV(hidraw_major, hidraw->minor));
337 		--hidraw->open;
339 	if (!hidraw->open) {
340 		if (!hidraw->exist) {
341 			hidraw_table[hidraw->minor] = NULL;
342 			kfree(hidraw);
345 			hid_hw_close(hidraw->hid);
346 			hid_hw_power(hidraw->hid, PM_HINT_NORMAL);
381 	struct hidraw *dev;
521 	struct hidraw *dev = hid->hidraw;
551 	struct hidraw *dev;
555 	dev = kzalloc(sizeof(struct hidraw), GFP_KERNEL);
578 				 NULL, "%s%d", "hidraw", minor);
596 	hid->hidraw = dev;
607 	struct hidraw *hidraw = hid->hidraw;
611 	drop_ref(hidraw, 1);
623 			HIDRAW_MAX_DEVICES, "hidraw");