diff options
| author | Felix Hädicke <felixhaedicke@web.de> | 2016-06-22 02:12:08 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-08-25 12:13:17 +0300 |
| commit | 1a00b457a5482c3822bfc0fd64c088b2dba93e26 (patch) | |
| tree | 5fa3a86d38d3d521845a3b93ea9c83ec9d0f34a1 /include/linux/usb | |
| parent | 54dfce6d07b0391e23d006579bba488de4f7d6aa (diff) | |
| download | linux-1a00b457a5482c3822bfc0fd64c088b2dba93e26.tar.xz | |
usb: gadget: composite: let USB functions process ctrl reqs in cfg0
It can sometimes be necessary for gadget drivers to process non-standard
control requests, which host devices can send without having sent
USB_REQ_SET_CONFIGURATION.
Therefore, the req_match() usb_function method is enhanced with the new
parameter "config0". When a USB configuration is active, this parameter
is false. When a non-core control request is processed in
composite_setup(), without an active configuration, req_match() of the
USB functions of all available configurations which implement this
function, is called with config0=true. Then the control request gets
processed by the first usb_function instance whose req_match() returns
true.
Signed-off-by: Felix Hädicke <felixhaedicke@web.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'include/linux/usb')
| -rw-r--r-- | include/linux/usb/composite.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index 2b81b24eb5aa..4616a49a1c2e 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -220,7 +220,8 @@ struct usb_function { int (*setup)(struct usb_function *, const struct usb_ctrlrequest *); bool (*req_match)(struct usb_function *, - const struct usb_ctrlrequest *); + const struct usb_ctrlrequest *, + bool config0); void (*suspend)(struct usb_function *); void (*resume)(struct usb_function *); |