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- What: /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_req
- Date: Feb 2014
- Contact: Li Jun <b47624@freescale.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 <b47624@freescale.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 <b47624@freescale.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 <b47624@freescale.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"
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