mirror of
https://github.com/torvalds/linux
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d937ae5fae
User-space can use read() to get a single event from uhid devices. read() does never return multiple events. This allows us to extend the event structure and still keep backwards compatibility. If user-space wants to get multiple events in one syscall, they should use the readv()/writev() syscalls which are supported by uhid. This introduces a new lock which helps us synchronizing simultaneous reads from user-space. We also correctly return -EINVAL/-EFAULT only on errors and retry the read() when some other thread captured the event faster than we did. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> |
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| .. | ||
| usbhid | ||
| hid-a4tech.c | ||
| hid-apple.c | ||
| hid-aureal.c | ||
| hid-axff.c | ||
| hid-belkin.c | ||
| hid-cherry.c | ||
| hid-chicony.c | ||
| hid-core.c | ||
| hid-cypress.c | ||
| hid-debug.c | ||
| hid-dr.c | ||
| hid-elecom.c | ||
| hid-emsff.c | ||
| hid-ezkey.c | ||
| hid-gaff.c | ||
| hid-generic.c | ||
| hid-gyration.c | ||
| hid-holtekff.c | ||
| hid-hyperv.c | ||
| hid-ids.h | ||
| hid-input.c | ||
| hid-kensington.c | ||
| hid-keytouch.c | ||
| hid-kye.c | ||
| hid-lcpower.c | ||
| hid-lg.c | ||
| hid-lg.h | ||
| hid-lg2ff.c | ||
| hid-lg3ff.c | ||
| hid-lg4ff.c | ||
| hid-lgff.c | ||
| hid-logitech-dj.c | ||
| hid-logitech-dj.h | ||
| hid-magicmouse.c | ||
| hid-microsoft.c | ||
| hid-monterey.c | ||
| hid-multitouch.c | ||
| hid-ntrig.c | ||
| hid-ortek.c | ||
| hid-petalynx.c | ||
| hid-picolcd.c | ||
| hid-pl.c | ||
| hid-primax.c | ||
| hid-prodikeys.c | ||
| hid-roccat-arvo.c | ||
| hid-roccat-arvo.h | ||
| hid-roccat-common.c | ||
| hid-roccat-common.h | ||
| hid-roccat-isku.c | ||
| hid-roccat-isku.h | ||
| hid-roccat-kone.c | ||
| hid-roccat-kone.h | ||
| hid-roccat-koneplus.c | ||
| hid-roccat-koneplus.h | ||
| hid-roccat-kovaplus.c | ||
| hid-roccat-kovaplus.h | ||
| hid-roccat-pyra.c | ||
| hid-roccat-pyra.h | ||
| hid-roccat.c | ||
| hid-saitek.c | ||
| hid-samsung.c | ||
| hid-sjoy.c | ||
| hid-sony.c | ||
| hid-speedlink.c | ||
| hid-sunplus.c | ||
| hid-tivo.c | ||
| hid-tmff.c | ||
| hid-topseed.c | ||
| hid-twinhan.c | ||
| hid-uclogic.c | ||
| hid-wacom.c | ||
| hid-waltop.c | ||
| hid-wiimote-core.c | ||
| hid-wiimote-debug.c | ||
| hid-wiimote-ext.c | ||
| hid-wiimote.h | ||
| hid-zpff.c | ||
| hid-zydacron.c | ||
| hidraw.c | ||
| Kconfig | ||
| Makefile | ||
| uhid.c | ||