[PATCH] Input: Add a new switch event type

The corgi keyboard has need of a switch event type with slightly type to the
input system as recommended by the input maintainer.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index f8b278d3559b..19c14c4beb44 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -393,6 +393,7 @@ static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                                                 case EV_LED: bits = dev->ledbit; len = LED_MAX; break;
                                                 case EV_SND: bits = dev->sndbit; len = SND_MAX; break;
                                                 case EV_FF:  bits = dev->ffbit;  len = FF_MAX;  break;
+                                                case EV_SW:  bits = dev->swbit;  len = SW_MAX;  break;
                                                 default: return -EINVAL;
                                         }
                                         len = NBITS(len) * sizeof(long);
@@ -421,6 +422,13 @@ static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                                         return copy_to_user(p, dev->snd, len) ? -EFAULT : len;
                                 }
 
+                                if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSW(0))) {
+                                        int len;
+                                        len = NBITS(SW_MAX) * sizeof(long);
+                                        if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
+                                        return copy_to_user(p, dev->sw, len) ? -EFAULT : len;
+                                }
+
                                 if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0))) {
                                         int len;
                                         if (!dev->name) return -ENOENT;