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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-04-18 17:52:20 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-04-18 17:52:20 +0300
commitac9d947683c1b508f798f0c87c51cfb7b9f1eee5 (patch)
treeda5b359d2f932fa433a45bdba0b0d10c0cb2ce2c /Documentation/ABI/testing
parent593bc4622a98c172dbb939103aef917d1800a663 (diff)
parenta932a8041ff9941a244619555f1c75ecf299f662 (diff)
downloadlinux-ac9d947683c1b508f798f0c87c51cfb7b9f1eee5.tar.xz
Merge tag 'usb-ci-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next
Peter writes: Two changes for this v4.12-rc1: - Add sysfs entry for role switch - Update gadget state after gadget back from suspend
Diffstat (limited to 'Documentation/ABI/testing')
-rw-r--r--Documentation/ABI/testing/sysfs-platform-chipidea-usb29
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diff --git a/Documentation/ABI/testing/sysfs-platform-chipidea-usb2 b/Documentation/ABI/testing/sysfs-platform-chipidea-usb2
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+What: /sys/bus/platform/devices/ci_hdrc.0/role
+Date: Mar 2017
+Contact: Peter Chen <peter.chen@nxp.com>
+Description:
+ It returns string "gadget" or "host" when read it, it indicates
+ current controller role.
+
+ It will do role switch when write "gadget" or "host" to it.
+ Only controller at dual-role configuration supports writing.