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| author | Daniel Scally <dan.scally@ideasonboard.com> | 2023-02-06 19:17:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-07 10:46:36 +0300 |
| commit | 15a7cf8caabee4613764abe7814dd3162cb64137 (patch) | |
| tree | 1152eea6bfffa3025c5cd354c064138ddce46b84 /Documentation/usb | |
| parent | 6e2a512d9532c51889a2601cba338c4673a09374 (diff) | |
| download | linux-15a7cf8caabee4613764abe7814dd3162cb64137.tar.xz | |
usb: gadget: configfs: Support arbitrary string descriptors
Add a framework to allow users to define arbitrary string descriptors
for a USB Gadget. This is modelled as a new type of config item rather
than as hardcoded attributes so as to be as flexible as possible.
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Link: https://lore.kernel.org/r/20230206161802.892954-7-dan.scally@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/usb')
| -rw-r--r-- | Documentation/usb/gadget_configfs.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/usb/gadget_configfs.rst b/Documentation/usb/gadget_configfs.rst index e4566ffb223f..868e118a2644 100644 --- a/Documentation/usb/gadget_configfs.rst +++ b/Documentation/usb/gadget_configfs.rst @@ -90,6 +90,16 @@ Then the strings can be specified:: $ echo <manufacturer> > strings/0x409/manufacturer $ echo <product> > strings/0x409/product +Further custom string descriptors can be created as directories within the +language's directory, with the string text being written to the "s" attribute +within the string's directory: + + $ mkdir strings/0x409/xu.0 + $ echo <string text> > strings/0x409/xu.0/s + +Where function drivers support it, functions may allow symlinks to these custom +string descriptors to associate those strings with class descriptors. + 2. Creating the configurations ------------------------------ |