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Diffstat (limited to 'include/uapi/linux/usb/functionfs.h')
-rw-r--r--include/uapi/linux/usb/functionfs.h5
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 |