diff options
| author | Li Jun <[email protected]> | 2015-03-08 16:05:01 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2015-03-15 10:27:20 +0100 |
| commit | d20f7807996c69537e07443ef8dec4e01a28b099 (patch) | |
| tree | 8abe4838fa65372922477f9dafd92da3bd303464 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | c526c216fef0022611b0b7cd0f68d103e3378b49 (diff) | |
usb: chipidea: otg: add a_alt_hnp_support response for B device
This patch adds response to a_alt_hnp_support set feature request from legacy
A device, that is, B-device can provide a message to the user indicating that
the user needs to connect the B-device to an alternate port on the A-device.
A device sets this feature indicates to the B-device that it is connected
to an A-device port that is not capable of HNP, but that the A-device does have
an alternate port that is capable of HNP.
[Peter]
Without this patch, the OTG B device can't be enumerated on
non-HNP port at A device, see below log:
[ 2.287464] usb 1-1: Dual-Role OTG device on non-HNP port
[ 2.293105] usb 1-1: can't set HNP mode: -32
[ 2.417422] usb 1-1: new high-speed USB device number 4 using ci_hdrc
[ 2.460635] usb 1-1: Dual-Role OTG device on non-HNP port
[ 2.466424] usb 1-1: can't set HNP mode: -32
[ 2.587464] usb 1-1: new high-speed USB device number 5 using ci_hdrc
[ 2.630649] usb 1-1: Dual-Role OTG device on non-HNP port
[ 2.636436] usb 1-1: can't set HNP mode: -32
[ 2.641003] usb usb1-port1: unable to enumerate USB device
Cc: stable <[email protected]>
Acked-by: Peter Chen <[email protected]>
Signed-off-by: Li Jun <[email protected]>
Signed-off-by: Peter Chen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions