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Based on kernel version 3.16. Page generated on 2014-08-06 21:35 EST.

1	What:		/sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_req
2	Date:		Feb 2014
3	Contact:	Li Jun <b47624@freescale.com>
4	Description:
5			Can be set and read.
6			Set a_bus_req(A-device bus request) input to be 1 if
7			the application running on the A-device wants to use the bus,
8			and to be 0 when the application no longer wants to use
9			the bus(or wants to work as peripheral). a_bus_req can also
10			be set to 1 by kernel in response to remote wakeup signaling
11			from the B-device, the A-device should decide to resume the bus.
12	
13			Valid values are "1" and "0".
14	
15			Reading: returns 1 if the application running on the A-device
16			is using the bus as host role, otherwise 0.
17	
18	What:		/sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_drop
19	Date:		Feb 2014
20	Contact:	Li Jun <b47624@freescale.com>
21	Description:
22			Can be set and read
23			The a_bus_drop(A-device bus drop) input is 1 when the
24			application running on the A-device wants to power down
25			the bus, and is 0 otherwise, When a_bus_drop is 1, then
26			the a_bus_req shall be 0.
27	
28			Valid values are "1" and "0".
29	
30			Reading: returns 1 if the bus is off(vbus is turned off) by
31				 A-device, otherwise 0.
32	
33	What:		/sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req
34	Date:		Feb 2014
35	Contact:	Li Jun <b47624@freescale.com>
36	Description:
37			Can be set and read.
38			The b_bus_req(B-device bus request) input is 1 during the time
39			that the application running on the B-device wants to use the
40			bus as host, and is 0 when the application no longer wants to
41			work as host and decides to switch back to be peripheral.
42	
43			Valid values are "1" and "0".
44	
45			Reading: returns if the application running on the B device
46			is using the bus as host role, otherwise 0.
47	
48	What:		/sys/bus/platform/devices/ci_hdrc.0/inputs/a_clr_err
49	Date:		Feb 2014
50	Contact:	Li Jun <b47624@freescale.com>
51	Description:
52			Only can be set.
53			The a_clr_err(A-device Vbus error clear) input is used to clear
54			vbus error, then A-device will power down the bus.
55	
56			Valid value is "1"
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