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authorSakethram Bommisetti <sakethram.bommisetti@stericsson.com>2011-01-25 16:10:30 +0530
committerJonas ABERG <jonas.aberg@stericsson.com>2011-02-04 12:47:09 +0100
commite7605f04bd6ebafec097e5cc734ff9affbc17158 (patch)
tree052179b849bc319bc845ddfdec05647c457d2e73 /Documentation
parent28327e018d157f3445d34e76a9f55ed010ef9327 (diff)
USB: gadget: OTG supplement revision 2.0 updates
Introduce otg_version field in usb_gadget struct.UDC can advertise OTG spec version compatibility by setting otg_version field appropriately. Gadget drivers fill the bcdOTG field in OTG descriptor based on UDC's OTG version. Add sysfs file for host_request and UDC returns the same when HNP polling request arrives from the host. Signed-off-by: Pavankumar Kondeti <pkondeti@...> Change-Id: Idde2bfcdbdada1023ef2bc7ef8d01d85fa271331 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/14267 Tested-by: Sakethram BOMMISETTI <sakethram.bommisetti@stericsson.com> Reviewed-by: Praveena NADAHALLY <praveen.nadahally@stericsson.com> Reviewed-by: QATOOLS
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget12
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget b/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget
index 34034027b13..1424c746fda 100644
--- a/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget
+++ b/Documentation/ABI/testing/sysfs-devices-platform-_UDC_-gadget
@@ -7,3 +7,15 @@ Description:
0 -> resumed
(_UDC_ is the name of the USB Device Controller driver)
+What: /sys/devices/platform/_UDC_/gadget/host_request
+Date: December 2010
+Contact: Pavan Kondeti <pkondeti@...>
+Description:
+ OTG 2.0 compliant host keeps polling OTG2.0 peripheral
+ for host role. Set host_request flag, which tells host
+ to give up the host role to peripheral.
+
+ 1 -> host role is requested
+ 0 -> no effect (automatically cleared upon reset/disconnect)
+
+ (_UDC_ is the name of the USB Device Controller driver) \ No newline at end of file