Hi Shonmou,
please include linux-wireless in CC.
On 03/20/2012 02:15 PM, shonmou li wrote:
> Hi Kalle,
>
> Thanks for your reply. I have added descriptions and signed-off-line in
> the patch file.
>
> When i port the ar6003 driver into android device (ICS), I used the
> following procedure to trigger this bug every time:
>
> 1. enable wifi in android setting menu.
> 2. connect with an AP.
> 3. After device enter suspending state, power off the connected AP.
> 4. At this moment, the device would resume to deal with disconnection event.
> 5. After device suspend again, press power on button to wake the device on.
> 6. Go to setting menu wifi page, press scan button.
> 7. You will get "Scan trigger failed: ret=-16 (Device or resource
> busy)" on android main log.
>
> The log file is in attached file log1.txt.
>
> If FW has the capability to check the status of normal scan and sscan, i
> think it is better. But it should add external information or API in
> order to notify user space what scan mode it is.
Thanks, I understand the issue better. I think your patch is a good fix
for now. If there are more problems still we can fix those separately.
Raja also saw the same problem and he confirmed that your patch fixes
the issue.
I have applied the patch to ath6kl.git with minor modifications to the
commit log. Thank you very much for the patch.
Kalle
commit b4d13d3b70b085ef9b8e0bf7132d502d77d9ffc6
Author: Kalle Valo <kvalo@xxxxxxxxxxxxxxxx>
Date: Wed Mar 21 10:01:09 2012 +0200
ath6kl: abort normal scan when scheduled scan is started
If the device disconnects from an AP when it is in suspending state.
You will
get the following message from wpa_supplicant after waking the
device up and
sending scan request:
"Scan trigger failed: ret=-16 (Device or resource busy)"
Fix the issue by sending a scan complete event before starting scheduled
scan.
kvalo: cosmetic changes to commit log
Signed-off-by: Isaac.li <shonmou@xxxxxxxxx>
Tested-by: Raja Mani <rmani@xxxxxxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxxxx>
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