From: Takashi Iwai <tiwai@suse.de>
To: Giuliano Pochini <pochini@shiny.it>
Cc: alsa-devel <alsa-devel@lists.sourceforge.net>
Subject: Re: .dimen ?
Date: Tue, 20 May 2003 10:51:13 +0200 [thread overview]
Message-ID: <s5hr86uc872.wl@alsa2.suse.de> (raw)
In-Reply-To: <1053277534.1358.7.camel@Jay>
At 18 May 2003 17:05:33 +0000,
Giuliano Pochini wrote:
>
> [1 <text/plain (7bit)>]
>
>
> In struct sndrv_ctl_elem_info what is the union .dimen for ?
it was introduced to describe the size of matrix controls.
basically the control API accepts the linear index, so user (or
alsa-lib) needs to map the multi-dimensional array to the linear
index. the dimen field specifies the number of elements in each
dimension. (up to 4 dimensions are supposed.)
so far, no driver supports this feature yet, though...
> A grep(1)
> in all sources show that it's referenced only in
> snd_ctl_elem_info_get_dimension() and
> snd_ctl_elem_info_get_dimensions(). The latter seems quite buggy (patch
> against 0.9.3 is attached).
thanks, patch is applied to cvs.
ciao,
Takashi
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next prev parent reply other threads:[~2003-05-20 8:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-18 17:05 .dimen ? Giuliano Pochini
2003-05-20 8:51 ` Takashi Iwai [this message]
2003-05-20 9:58 ` Giuliano Pochini
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