diff options
| author | Johan Hovold <johan@kernel.org> | 2014-08-25 17:51:26 +0200 |
|---|---|---|
| committer | Zefan Li <lizefan@huawei.com> | 2015-02-02 17:05:12 +0800 |
| commit | 8cb0a20aaef0546ca0daf685ab127b181ea8284b (patch) | |
| tree | 7c981c9dd664d4b141a7d650069bd61559395e49 /include/linux | |
| parent | c960659c347e5e0c979084a793bf1f125f3b57ba (diff) | |
USB: core: add device-qualifier quirk
commit 2a159389bf5d962359349a76827b2f683276a1c7 upstream.
Add new quirk for devices that cannot handle requests for the
device_qualifier descriptor.
A USB-2.0 compliant device must respond to requests for the
device_qualifier descriptor (even if it's with a request error), but at
least one device is known to misbehave after such a request.
Suggested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Zefan Li <lizefan@huawei.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/usb/quirks.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h index 8eeeb876ef9c..d0d2af09dcc6 100644 --- a/include/linux/usb/quirks.h +++ b/include/linux/usb/quirks.h @@ -33,4 +33,7 @@ /* device generates spurious wakeup, ignore remote wakeup capability */ #define USB_QUIRK_IGNORE_REMOTE_WAKEUP 0x00000200 +/* device can't handle device_qualifier descriptor requests */ +#define USB_QUIRK_DEVICE_QUALIFIER 0x00000100 + #endif /* __LINUX_USB_QUIRKS_H */ |