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authorKrzysztof Opasiak <k.opasiak@samsung.com>2016-04-27 19:59:21 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-04-28 21:28:08 +0200
commitf945c546656e4330665a69aa35ae6491025128fc (patch)
treec30924be023a858f2e3ff85a8050674250d0da39 /Documentation/ABI/testing/sysfs-platform-usbip-vudc
parentMerge tag 'usb-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/bal... (diff)
downloadlinux-f945c546656e4330665a69aa35ae6491025128fc.tar.xz
linux-f945c546656e4330665a69aa35ae6491025128fc.zip
Documentation: ABI: Add doc for usbip-vudc attributes
As vudc provides some new attributes using sysfs infrastructure, add a suitable documentation file for those attributes. Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-platform-usbip-vudc')
-rw-r--r--Documentation/ABI/testing/sysfs-platform-usbip-vudc35
1 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-usbip-vudc b/Documentation/ABI/testing/sysfs-platform-usbip-vudc
new file mode 100644
index 000000000000..81fcfb454913
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-usbip-vudc
@@ -0,0 +1,35 @@
+What: /sys/devices/platform/usbip-vudc.%d/dev_desc
+Date: April 2016
+KernelVersion: 4.6
+Contact: Krzysztof Opasiak <k.opasiak@samsung.com>
+Description:
+ This file allows to read device descriptor of
+ gadget driver which is currently bound to this
+ controller. It is possible to read this file
+ only if gadget driver is bound, otherwise error
+ is returned.
+
+What: /sys/devices/platform/usbip-vudc.%d/usbip_status
+Date: April 2016
+KernelVersion: 4.6
+Contact: Krzysztof Opasiak <k.opasiak@samsung.com>
+Description:
+ Current status of the device.
+ Allowed values:
+ 1 - Device is available and can be exported
+ 2 - Device is currently exported
+ 3 - Fatal error occurred during communication
+ with peer
+
+What: /sys/devices/platform/usbip-vudc.%d/usbip_sockfd
+Date: April 2016
+KernelVersion: 4.6
+Contact: Krzysztof Opasiak <k.opasiak@samsung.com>
+Description:
+ This file allows to export usb device to
+ connection peer. It is done by writing to this
+ file socket fd (as a string for example "8")
+ associated with a connection to remote peer who
+ would like to use this device. It is possible to
+ close the connection by writing -1 instead of
+ socked fd.