At Tue, 30 Jun 2009 12:37:10 -0700,
Kevin Goodsell wrote:
>
> (I originally tried to send this via the moderator without subscribing
> to the list, but it never went through and I never received a moderator
> response. Apparently this list is set up as moderated, but nobody is
> actually moderating it.)
Somehow I seem to have overlooked your post. Sorry for the late
response.
> Summary: load_for_all_cards fails with existing configuration elements
>
> In snd_config_hook_load_for_all_cards, the first call to
> snd_config_search attempts to locate an existing configuration node with
> the name of the driver. Typically none is found, and everything is
> good. However, if such a node is located, the next line assumes it is a
> leaf node with type 'string' and calls snd_config_get_string to fetch
> the string value. If this fails, the entire hook is abandoned.
>
> Because of this, setting something like the following in asoundrc:
>
> cards.<driver name>.foo 0
>
> is sufficient to disable the entire card-specific configuration.
>
> As a concrete example, I have a HDA-Intel sound card. dmix.conf includes
> a way to set period_size, period_time, and periods by using
> configuration elements of the form cards.<driver name>.pcm.dmix.<var>.
> In ~/.asoundrc I add
>
> cards.HDA-Intel.pcm.dmix.period_size 1024
>
> This will cause HDA-Intel.conf to fail to load, and the pcm defined in
> default.conf will fail to find the device-specific pcm
> cards.HDA-Intel.pcm.default, and fall back on the default pcm using
> plughw. By attempting to configure dmix, I have disabled it.
>
> Fixing this may just be a matter of changing the line in
> snd_config_hook_load_for_all_cards from:
>
> if (snd_config_search(root, fdriver, &n) >= 0) {
>
> to:
>
> if (snd_config_search(root, fdriver, &n) >= 0 && n->type !=
> SND_CONFIG_TYPE_COMPOUND) {
An easier fix is just to test snd_config_get_string() in the same
if condition. I fixed on GIT tree now.
Thanks!
Takashi
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