On Tue, Jan 5, 2010 at 12:50 PM, Franz Fürbaß <franz.fuerb...@chello.at> wrote:
> Hello,
>
> [1] . Can't scan for DVB-T channels with Hauppauge HVR 4000 HD.
>
> [2] Got a scan problem with the Hauppauge HVR 4000 HD card.
> If I try to scan for channels with the DVB-T frontend
> (/dev/dvb/adapter0/frontend1)
> no lock is generated after this sequence:
>
> -open()
> -ioctl( fd, FE_GET_INFO, &fe_info )
> -close()
> -open()
> -ioctl( fd, FE_GET_INFO, &fe_info )

Could be some sort of timing bug where the frontend kernel thread is
suspending the device.  Just as a test, try putting an "msleep(5000);"
between the first close and the second open(), and see if the problem
still occurs.

Devin

-- 
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com
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