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authorIngo Molnar <mingo@kernel.org>2017-07-30 11:15:13 +0200
committerIngo Molnar <mingo@kernel.org>2017-07-30 11:15:13 +0200
commitf5db340f19f14a8df9dfd22d71fba1513e9f1f7e (patch)
tree131d3345bc987aee3c922624de816492e7f323a4 /include/uapi/linux/usb/functionfs.h
parentMerge tag 'perf-core-for-mingo-4.14-20170725' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (diff)
parentkprobes/x86: Release insn_slot in failure path (diff)
Merge branch 'perf/urgent' into perf/core, to pick up latest fixes and refresh the tree
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/uapi/linux/usb/functionfs.h')
-rw-r--r--include/uapi/linux/usb/functionfs.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h
index 062606f02309..f913d08ab7bb 100644
--- a/include/uapi/linux/usb/functionfs.h
+++ b/include/uapi/linux/usb/functionfs.h
@@ -275,13 +275,14 @@ struct usb_functionfs_event {
#define FUNCTIONFS_INTERFACE_REVMAP _IO('g', 128)
/*
- * Returns real bEndpointAddress of an endpoint. If function is not
- * active returns -ENODEV.
+ * Returns real bEndpointAddress of an endpoint. If endpoint shuts down
+ * during the call, returns -ESHUTDOWN.
*/
#define FUNCTIONFS_ENDPOINT_REVMAP _IO('g', 129)
/*
- * Returns endpoint descriptor. If function is not active returns -ENODEV.
+ * Returns endpoint descriptor. If endpoint shuts down during the call,
+ * returns -ESHUTDOWN.
*/
#define FUNCTIONFS_ENDPOINT_DESC _IOR('g', 130, \
struct usb_endpoint_descriptor)