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| author | Daniel Scally <dan.scally@ideasonboard.com> | 2023-03-09 13:58:25 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-29 09:51:26 +0300 |
| commit | 7bf1c56a90decd3bec4d49815289d2e40bb771ae (patch) | |
| tree | 01169e55e10ac21de4210df15b7836603cb4cd1a /Documentation/ABI | |
| parent | 0d6a119cecd7ffa059970dbc5b557bfce737945f (diff) | |
| download | linux-7bf1c56a90decd3bec4d49815289d2e40bb771ae.tar.xz | |
usb: gadget: uvc: Make bmControls attr read/write
For the Processing Unit and Camera Terminal descriptors defined in
the UVC Gadget we currently hard-code values into their bmControls
fields, which enumerates which controls the gadget is able to
support. This isn't appropriate since only the userspace companion
program to the kernel driver will know which controls are supported.
Make the configfs attributes that point to those fields read/write
so userspace can set them to appropriate values.
Document the new behaviour at the same time so the functionality is
clear.
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Link: https://lore.kernel.org/r/20230309105825.216745-1-dan.scally@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/configfs-usb-gadget-uvc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-uvc b/Documentation/ABI/testing/configfs-usb-gadget-uvc index 80b98a4a4d0f..4feb692c4c1d 100644 --- a/Documentation/ABI/testing/configfs-usb-gadget-uvc +++ b/Documentation/ABI/testing/configfs-usb-gadget-uvc @@ -76,7 +76,7 @@ Date: Dec 2014 KernelVersion: 4.0 Description: Default camera terminal descriptors - All attributes read only: + All attributes read only except bmControls, which is read/write: ======================== ==================================== bmControls bitmap specifying which controls are @@ -101,7 +101,7 @@ Date: Dec 2014 KernelVersion: 4.0 Description: Default processing unit descriptors - All attributes read only: + All attributes read only except bmControls, which is read/write: =============== ======================================== iProcessing index of string descriptor |