• Jiri Kosina's avatar
    HID: add hidraw interface · 86166b7b
    Jiri Kosina authored
    hidraw is an interface that is going to obsolete hiddev one
    Many userland applications are using libusb instead of using
    kernel-provided hiddev interface. This is caused by various
    reasons - the HID parser in kernel doesn't handle all the
    HID hardware on the planet properly, some devices might require
    its own specific quirks/drivers, etc.
    hiddev interface tries to do its best to parse all the received
    reports properly, and presents only parsed usages into userspace.
    This is however often not enough, and that's the reason why
    many userland applications just don't use hiddev at all, and
    rather use libusb to read raw USB events and process them on
    their own.
    Another drawback of hiddev is that it is USB-specific.
    hidraw interface provides userspace readers with really raw HID
    reports, no matter what the low-level transport layer is (USB/BT),
    and gives the userland applications all the freedom to process
    the HID reports in a way they wish to.
    Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
hidraw.h 1.97 KB