diff options
| author | Manu Gautam <mgautam@codeaurora.org> | 2014-02-28 16:50:22 +0530 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-03-05 14:40:10 -0600 |
| commit | 8d4e897bd0150fab594a871484e554472ee01452 (patch) | |
| tree | 4dd06a720883cb617afd64df0146285a22d70282 /include/uapi | |
| parent | d8eb6c653ef6b323d630de3c5685478469e248bc (diff) | |
usb: gadget: f_fs: Add support for SuperSpeed Mode
Allow userspace to pass SuperSpeed descriptors and
handle them in the driver accordingly.
This change doesn't modify existing desc_header and thereby
keeps the ABI changes backward compatible i.e. existing
userspace drivers compiled with old header (functionfs.h)
would continue to work with the updated kernel.
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/usb/functionfs.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h index d6b01283f85c..0f8f7be5b0d3 100644 --- a/include/uapi/linux/usb/functionfs.h +++ b/include/uapi/linux/usb/functionfs.h @@ -13,6 +13,7 @@ enum { FUNCTIONFS_STRINGS_MAGIC = 2 }; +#define FUNCTIONFS_SS_DESC_MAGIC 0x0055DE5C #ifndef __KERNEL__ @@ -50,7 +51,11 @@ struct usb_functionfs_descs_head { * | 12 | hs_count | LE32 | number of high-speed descriptors | * | 16 | fs_descrs | Descriptor[] | list of full-speed descriptors | * | | hs_descrs | Descriptor[] | list of high-speed descriptors | + * | | ss_magic | LE32 | FUNCTIONFS_SS_DESC_MAGIC | + * | | ss_count | LE32 | number of super-speed descriptors | + * | | ss_descrs | Descriptor[] | list of super-speed descriptors | * + * ss_magic: if present then it implies that SS_DESCs are also present * descs are just valid USB descriptors and have the following format: * * | off | name | type | description | |