From: Clemens Ladisch <clemens@ladisch.de>
To: gsantosh@codeaurora.org
Cc: tiwai@suse.de, alsa-devel@alsa-project.org, lgirdwood@gmail.com
Subject: Re: Question on wait_for_avail function
Date: Wed, 05 Jun 2013 11:17:23 +0200 [thread overview]
Message-ID: <51AF0223.5020901@ladisch.de> (raw)
In-Reply-To: <1794d77072add642c43309c0a06bfadb.squirrel@www.codeaurora.org>
gsantosh@codeaurora.org wrote:
> 2) HAL issues pause in parallel to the write
This is illegal.
<http://www.alsa-project.org/main/index.php/SMP_Design> says:
| The use of returned handles [such as snd_pcm_t*] must be serialized in
| the application using own locking scheme.
If you want to issue a pause while waiting for data to be written, use
non-blocking writes.
Regards,
Clemens
next prev parent reply other threads:[~2013-06-05 9:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-05 8:28 Question on wait_for_avail function gsantosh
2013-06-05 9:17 ` Clemens Ladisch [this message]
2013-06-06 6:25 ` Patrick Lai
2013-06-06 6:53 ` Takashi Iwai
2013-06-06 18:29 ` gsantosh
2013-06-07 10:55 ` Takashi Iwai
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=51AF0223.5020901@ladisch.de \
--to=clemens@ladisch.de \
--cc=alsa-devel@alsa-project.org \
--cc=gsantosh@codeaurora.org \
--cc=lgirdwood@gmail.com \
--cc=tiwai@suse.de \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.