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| author | Alan Stern <stern@rowland.harvard.edu> | 2017-12-11 11:58:21 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-12 13:16:07 +0100 |
| commit | aa15d3d257f9edcb8d15ed27e228d1c0080cb919 (patch) | |
| tree | 15538925275f3ddf5768c279e644049740c4e75b /Documentation/usb | |
| parent | 4ff02f099f68f1e6be5956849180eaa326c37248 (diff) | |
| download | lwn-aa15d3d257f9edcb8d15ed27e228d1c0080cb919.tar.gz lwn-aa15d3d257f9edcb8d15ed27e228d1c0080cb919.zip | |
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 'Documentation/usb')
| -rw-r--r-- | Documentation/usb/usbip_protocol.txt | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/Documentation/usb/usbip_protocol.txt b/Documentation/usb/usbip_protocol.txt index 16b6fe27284c..c7a0f4c7e7f1 100644 --- a/Documentation/usb/usbip_protocol.txt +++ b/Documentation/usb/usbip_protocol.txt @@ -274,7 +274,6 @@ USBIP_CMD_SUBMIT: Submit an URB URB_SHORT_NOT_OK | 0x00000001 | only in | only in | only in | no URB_ISO_ASAP | 0x00000002 | no | no | no | yes URB_NO_TRANSFER_DMA_MAP | 0x00000004 | yes | yes | yes | yes - URB_NO_FSBR | 0x00000020 | yes | no | no | no URB_ZERO_PACKET | 0x00000040 | no | no | only out | no URB_NO_INTERRUPT | 0x00000080 | yes | yes | yes | yes URB_FREE_BUFFER | 0x00000100 | yes | yes | yes | yes |