From: Antti Palosaari <crope@iki.fi>
To: Devin Heitmueller <dheitmueller@kernellabs.com>
Cc: Jose Alberto Reguero <jareguero@telefonica.net>,
linux-media@vger.kernel.org,
Michael Krufky <mkrufky@kernellabs.com>
Subject: Re: Noisy video with Avermedia AVerTV Digi Volar X HD (AF9015) and mythbuntu 9.04
Date: Wed, 26 Aug 2009 01:38:07 +0300 [thread overview]
Message-ID: <4A9467CF.2070207@iki.fi> (raw)
In-Reply-To: <829197380908251524m66bc9a46i5428bdc28ecab153@mail.gmail.com>
On 08/26/2009 01:24 AM, Devin Heitmueller wrote:
> On Tue, Aug 25, 2009 at 6:09 PM, Antti Palosaari<crope@iki.fi> wrote:
>> If demod (and tuner) is powered off by bridge (.power_ctrl) that's not
>> possible. Is there way to call bridge .power_ctrl to wake up demod and
>> tuner? I added param for demdod state to track sleep/wake state and return 0
>> in sleep case. But that does not sounds good solution...
>
> Michael Krufky actually put together some patches to allow the bridge
> to intercept frontend calls, which would allow for things like power
> management. I don't know if they've been merged yet.
OK, lets see.
I wonder why v4l-dvb -framework even allows IOCTLs when device is
powered off. This sounds like wrong functionality from my sight. Why not
to power on device before all IOCTL request. Some IOCTLs like
SET_FRONTEND will of course power on device but most not.
regards
Antti
--
http://palosaari.fi/
next prev parent reply other threads:[~2009-08-25 22:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-04 7:16 Noisy video with Avermedia AVerTV Digi Volar X HD (AF9015) and mythbuntu 9.04 Cyril Hansen
2009-08-04 11:12 ` Jose Alberto Reguero
2009-08-04 21:23 ` Cyril Hansen
2009-08-04 21:48 ` Jose Alberto Reguero
2009-08-25 21:50 ` Antti Palosaari
2009-08-25 22:01 ` Devin Heitmueller
2009-08-25 22:09 ` Antti Palosaari
2009-08-25 22:24 ` Devin Heitmueller
2009-08-25 22:38 ` Antti Palosaari [this message]
2009-08-26 11:09 ` Antti Palosaari
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4A9467CF.2070207@iki.fi \
--to=crope@iki.fi \
--cc=dheitmueller@kernellabs.com \
--cc=jareguero@telefonica.net \
--cc=linux-media@vger.kernel.org \
--cc=mkrufky@kernellabs.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox