From 534565f254490227e3bec20d50f387800960acd9 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 25 Apr 2007 00:53:18 -0400 Subject: Input: add input_set_capability() helper Add input_set_capability() helper used to indicate that an input device supports a certain event without need to manipulate bitmaps directly. Signed-off-by: Dmitry Torokhov --- drivers/input/input.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) (limited to 'drivers/input/input.c') diff --git a/drivers/input/input.c b/drivers/input/input.c index 173c2861ec58..915e9ab7cab0 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -1046,6 +1046,62 @@ void input_free_device(struct input_dev *dev) } EXPORT_SYMBOL(input_free_device); +/** + * input_set_capability - mark device as capable of a certain event + * @dev: device that is capable of emitting or accepting event + * @type: type of the event (EV_KEY, EV_REL, etc...) + * @code: event code + * + * In addition to setting up corresponding bit in appropriate capability + * bitmap the function also adjusts dev->evbit. + */ +void input_set_capability(struct input_dev *dev, unsigned int type, unsigned int code) +{ + switch (type) { + case EV_KEY: + __set_bit(code, dev->keybit); + break; + + case EV_REL: + __set_bit(code, dev->relbit); + break; + + case EV_ABS: + __set_bit(code, dev->absbit); + break; + + case EV_MSC: + __set_bit(code, dev->mscbit); + break; + + case EV_SW: + __set_bit(code, dev->swbit); + break; + + case EV_LED: + __set_bit(code, dev->ledbit); + break; + + case EV_SND: + __set_bit(code, dev->sndbit); + break; + + case EV_FF: + __set_bit(code, dev->ffbit); + break; + + default: + printk(KERN_ERR + "input_set_capability: unknown type %u (code %u)\n", + type, code); + dump_stack(); + return; + } + + __set_bit(type, dev->evbit); +} +EXPORT_SYMBOL(input_set_capability); + int input_register_device(struct input_dev *dev) { static atomic_t input_no = ATOMIC_INIT(0); -- cgit v1.2.2