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authorAndrey Konovalov <andreyknvl@google.com>2020-05-07 19:06:57 +0200
committerFelipe Balbi <balbi@kernel.org>2020-05-14 12:30:18 +0300
commitc61769bd4777a922952aed0d042a2572e5bd9b74 (patch)
treefe490ffcffdad1d0a4a0c264372cb4c1fd2e6f6c /Documentation
parent97df5e5758f7d1dd0ca97e3210696818fc45bdb3 (diff)
downloadlinux-c61769bd4777a922952aed0d042a2572e5bd9b74.tar.gz
usb: raw-gadget: support stalling/halting/wedging endpoints
Raw Gadget is currently unable to stall/halt/wedge gadget endpoints,
which is required for proper emulation of certain USB classes.

This patch adds a few more ioctls:

- USB_RAW_IOCTL_EP0_STALL allows to stall control endpoint #0 when
  there's a pending setup request for it.
- USB_RAW_IOCTL_SET/CLEAR_HALT/WEDGE allow to set/clear halt/wedge status
  on non-control non-isochronous endpoints.

Fixes: f2c2e717642c ("usb: gadget: add raw-gadget interface")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/usb/raw-gadget.rst2
1 files changed, 0 insertions, 2 deletions
diff --git a/Documentation/usb/raw-gadget.rst b/Documentation/usb/raw-gadget.rst
index 4af8b1f15574..3b3d78e850b2 100644
--- a/Documentation/usb/raw-gadget.rst
+++ b/Documentation/usb/raw-gadget.rst
@@ -52,8 +52,6 @@ The typical usage of Raw Gadget looks like:
 Potential future improvements
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-- Implement ioctl's for setting/clearing halt status on endpoints.
-
 - Reporting more events (suspend, resume, etc.) through
   USB_RAW_IOCTL_EVENT_FETCH.