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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+What: /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_req
+Date: Feb 2014
+Contact: Li Jun <jun.li@nxp.com>
+Description:
+ Can be set and read.
+ Set a_bus_req(A-device bus request) input to be 1 if
+ the application running on the A-device wants to use the bus,
+ and to be 0 when the application no longer wants to use
+ the bus(or wants to work as peripheral). a_bus_req can also
+ be set to 1 by kernel in response to remote wakeup signaling
+ from the B-device, the A-device should decide to resume the bus.
+
+ Valid values are "1" and "0".
+
+ Reading: returns 1 if the application running on the A-device
+ is using the bus as host role, otherwise 0.
+
+What: /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_drop
+Date: Feb 2014
+Contact: Li Jun <jun.li@nxp.com>
+Description:
+ Can be set and read
+ The a_bus_drop(A-device bus drop) input is 1 when the
+ application running on the A-device wants to power down
+ the bus, and is 0 otherwise, When a_bus_drop is 1, then
+ the a_bus_req shall be 0.
+
+ Valid values are "1" and "0".
+
+ Reading: returns 1 if the bus is off(vbus is turned off) by
+ A-device, otherwise 0.
+
+What: /sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req
+Date: Feb 2014
+Contact: Li Jun <jun.li@nxp.com>
+Description:
+ Can be set and read.
+ The b_bus_req(B-device bus request) input is 1 during the time
+ that the application running on the B-device wants to use the
+ bus as host, and is 0 when the application no longer wants to
+ work as host and decides to switch back to be peripheral.
+
+ Valid values are "1" and "0".
+
+ Reading: returns if the application running on the B device
+ is using the bus as host role, otherwise 0.
+
+What: /sys/bus/platform/devices/ci_hdrc.0/inputs/a_clr_err
+Date: Feb 2014
+Contact: Li Jun <jun.li@nxp.com>
+Description:
+ Only can be set.
+ The a_clr_err(A-device Vbus error clear) input is used to clear
+ vbus error, then A-device will power down the bus.
+
+ Valid value is "1"