diff options
| author | Joe Swantek <joseph.swantek@motorola.com> | 2009-12-15 07:17:40 -0500 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 12:12:07 -0700 |
| commit | d384394c04c9f9ae04cb0a7677d871205483193c (patch) | |
| tree | 2fadbda1c503a3d13db762769b81ee009ff8a6b5 /drivers/usb/gadget/composite.c | |
| parent | c82a19f83dbb0145391ea032038c74b010e8b7f2 (diff) | |
USB: composite: Allow configurations to handle unhandled setup requests
Signed-off-by: Mike Lockwood <lockwood@android.com>
Change-Id: I5b5ffd02578ccd92e6909735f259e39f5143339b
Reviewed-on: http://git-master/r/110674
Reviewed-by: Prashant Malani <pmalani@nvidia.com>
Tested-by: Prashant Malani <pmalani@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bo Yan <byan@nvidia.com>
Rebase-Id: Ra322344422946076110063e93087067388cbcafe
Diffstat (limited to 'drivers/usb/gadget/composite.c')
| -rw-r--r-- | drivers/usb/gadget/composite.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index a224eb57a967..b6f2b3f76085 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1466,6 +1466,25 @@ unknown: value = c->setup(c, ctrl); } + /* If the vendor request is not processed (value < 0), + * call all device registered configure setup callbacks + * to process it. + * This is used to handle the following cases: + * - vendor request is for the device and arrives before + * setconfiguration. + * - Some devices are required to handle vendor request before + * setconfiguration such as MTP, USBNET. + */ + + if (value < 0) { + struct usb_configuration *cfg; + + list_for_each_entry(cfg, &cdev->configs, list) { + if (cfg && cfg->setup) + value = cfg->setup(cfg, ctrl); + } + } + goto done; } |