media/rc/rc-main.c

940  * @filter:	the scancode and mask
942  * return:	0 or -EINVAL if the filter is not valid
945 			      struct rc_scancode_filter *filter)
947 	u32 mask, s = filter->data;
958 	filter->data &= mask;
959 	filter->mask &= mask;
964 	if (dev->encode_wakeup && filter->mask != 0 && filter->mask != mask)
1072  * struct rc_filter_attribute - Device attribute relating to a filter type.
1075  * @mask:	false for filter value, true for filter mask.
1282 	struct rc_scancode_filter *filter;
1288 	filter = &dev->scancode_filter;
1324 	 * If a protocol change was attempted the filter may need updating, even
1326 	 * cleared the filter).
1327 	 * Try setting the same filter with the new protocol (if any).
1328 	 * Fall back to clearing the filter.
1330 	if (dev->s_filter && filter->mask) {
1332 			rc = dev->s_filter(dev, filter);
1337 			filter->data = 0;
1338 			filter->mask = 0;
1339 			dev->s_filter(dev, filter);
1351  * show_filter() - shows the current scancode filter value or mask
1356  * This routine is a callback routine to read a scancode filter value or mask.
1357  * It is triggered by reading /sys/class/rc/rc?/[wakeup_]filter[_mask].
1358  * It prints the current scancode filter value or mask of the appropriate filter
1361  * Bits of the filter value corresponding to set bits in the filter mask are
1373 	struct rc_scancode_filter *filter;
1379 		filter = &dev->scancode_filter;
1381 		filter = &dev->scancode_wakeup_filter;
1384 		val = filter->mask;
1386 		val = filter->data;
1393  * store_filter() - changes the scancode filter value
1399  * This routine is for changing a scancode filter value or mask.
1400  * It is triggered by writing to /sys/class/rc/rc?/[wakeup_]filter[_mask].
1401  * Returns -EINVAL if an invalid filter value for the current protocol was
1405  * Bits of the filter value corresponding to set bits in the filter mask are
1417 	struct rc_scancode_filter new_filter, *filter;
1420 	int (*set_filter)(struct rc_dev *dev, struct rc_scancode_filter *filter);
1428 		filter = &dev->scancode_filter;
1431 		filter = &dev->scancode_wakeup_filter;
1443 	new_filter = *filter;
1451 		 * Refuse to set a filter unless a protocol is enabled
1452 		 * and the filter is valid for that protocol
1465 		/* refuse to set a filter unless a protocol is enabled */
1474 	*filter = new_filter;
1647 static RC_FILTER_ATTR(filter, S_IRUGO|S_IWUSR,