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From: "Clemens Ladisch" <cladisch@fastmail.net>
To: "Pharaoh ." <pharaoh137@gmail.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: pcm->private_data is NULL in alsa core!!
Date: Tue, 19 Jun 2007 13:10:30 +0200	[thread overview]
Message-ID: <1182251430.29389.1195911445@webmail.messagingengine.com> (raw)
In-Reply-To: <61445c750706180456i5228c8dbqbd168e5a3bbbe435@mail.gmail.com>

Pharaoh . wrote:
> > > I have set the pcm->private_data = my_chip after registering the pcm ops,
> > > ... but after I do snd_card_register(card) the pcm->private_data is
> > > corrupted !!

snd_card_omap_alsa_pcm() should be __devinit, and full duplex is implied
when no other XXX_DUPLEX flag is set, but I couldn't find any obvious
errors related to private_data.

Does the changing of private_data really occur in snd_card_register(),
i.e., the output you get is:

| in register codec 4 pvt data is (something)
| in register codec 5 pvt data is 0

And the new value is NULL?

snd_card_register() calls callbacks for all registered devices.  It
could be possible that some callback registered by eac_register_mixer()
does something, but I don't know what this function does.


Regards,
Clemens

  parent reply	other threads:[~2007-06-19 11:10 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-16 12:50 pcm->private_data is NULL in alsa core!! Pharaoh .
2007-06-17 15:45 ` Pharaoh .
2007-06-18  7:37 ` Clemens Ladisch
2007-06-18 11:56   ` Pharaoh .
2007-06-18 11:58     ` Pharaoh .
2007-06-19 11:10     ` Clemens Ladisch [this message]
2007-06-19 11:30       ` Pharaoh .
2007-06-19 12:17         ` Pharaoh .
2007-06-19 14:29         ` Clemens Ladisch
2007-06-20 10:18           ` Pharaoh .
2007-06-20 11:12             ` Pharaoh .
2007-06-20 11:16               ` Pharaoh .
2007-06-20 16:13                 ` Clemens Ladisch
2007-06-20 16:29                   ` Pharaoh .
2007-06-22 20:03                     ` Pharaoh .

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