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authorAlan Stern <stern@rowland.harvard.edu>2017-12-11 19:58:21 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-12 15:16:07 +0300
commitaa15d3d257f9edcb8d15ed27e228d1c0080cb919 (patch)
tree15538925275f3ddf5768c279e644049740c4e75b /include/uapi/linux/usbdevice_fs.h
parent4ff02f099f68f1e6be5956849180eaa326c37248 (diff)
downloadlinux-aa15d3d257f9edcb8d15ed27e228d1c0080cb919.tar.xz
USB: remove the URB_NO_FSBR flag
The URB_NO_FSBR flag has never really been used. It was introduced as a potential way for UHCI to minimize PCI bus usage (by not attempting full-speed bulk and control transfers more than once per frame), but the flag was not set by any drivers. There's no point in keeping it around. This patch simplifies the API by removing it. Unfortunately, it does have to be kept as part of the usbfs ABI, but at least we can document in include/uapi/linux/usbdevice_fs.h that it doesn't do anything. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi/linux/usbdevice_fs.h')
-rw-r--r--include/uapi/linux/usbdevice_fs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/uapi/linux/usbdevice_fs.h b/include/uapi/linux/usbdevice_fs.h
index 70ed5338d447..964e87217be4 100644
--- a/include/uapi/linux/usbdevice_fs.h
+++ b/include/uapi/linux/usbdevice_fs.h
@@ -79,7 +79,7 @@ struct usbdevfs_connectinfo {
#define USBDEVFS_URB_SHORT_NOT_OK 0x01
#define USBDEVFS_URB_ISO_ASAP 0x02
#define USBDEVFS_URB_BULK_CONTINUATION 0x04
-#define USBDEVFS_URB_NO_FSBR 0x20
+#define USBDEVFS_URB_NO_FSBR 0x20 /* Not used */
#define USBDEVFS_URB_ZERO_PACKET 0x40
#define USBDEVFS_URB_NO_INTERRUPT 0x80