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| author | Daniel Scally <dan.scally@ideasonboard.com> | 2023-02-06 16:17:57 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-07 08:46:36 +0100 |
| commit | 15a7cf8caabee4613764abe7814dd3162cb64137 (patch) | |
| tree | 1152eea6bfffa3025c5cd354c064138ddce46b84 /include/linux/usb/gadget.h | |
| parent | 6e2a512d9532c51889a2601cba338c4673a09374 (diff) | |
| download | linux-stable-15a7cf8caabee4613764abe7814dd3162cb64137.tar.gz linux-stable-15a7cf8caabee4613764abe7814dd3162cb64137.tar.bz2 linux-stable-15a7cf8caabee4613764abe7814dd3162cb64137.zip | |
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 'include/linux/usb/gadget.h')
| -rw-r--r-- | include/linux/usb/gadget.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index dc3092cea99e..00750f7020f3 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -15,6 +15,7 @@ #ifndef __LINUX_USB_GADGET_H #define __LINUX_USB_GADGET_H +#include <linux/configfs.h> #include <linux/device.h> #include <linux/errno.h> #include <linux/init.h> @@ -821,6 +822,16 @@ int usb_gadget_get_string(const struct usb_gadget_strings *table, int id, u8 *bu /* check if the given language identifier is valid */ bool usb_validate_langid(u16 langid); +struct gadget_string { + struct config_item item; + struct list_head list; + char string[USB_MAX_STRING_LEN]; + struct usb_string usb_string; +}; + +#define to_gadget_string(str_item)\ +container_of(str_item, struct gadget_string, item) + /*-------------------------------------------------------------------------*/ /* utility to simplify managing config descriptors */ |