From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: CMI9780 and ALSA volume control Date: Tue, 13 Apr 2004 19:11:08 +0200 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: References: <92C0412E07F63549B2A2F2345D3DB515F7D42E@cm-msg-02.cmedia.com.tw> Mime-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=US-ASCII Return-path: In-Reply-To: <92C0412E07F63549B2A2F2345D3DB515F7D42E@cm-msg-02.cmedia.com.tw> Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: cltien@cmedia.com.tw Cc: ahessling@gmx.de, alsa-devel@lists.sourceforge.net, alsa-user@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org At Mon, 12 Apr 2004 11:04:55 +0800, C.L. Tien wrote: > > 9780 has no PCM volume control, master volume control doesn't > control the PCM, either. This feature is the same as other C-Media > AC97 Codecs. > > I once posted a patch that tune PCM volume in SW way (change PCM > data in DMA buffer), but it was not accepted. IMO, doing this s/w volume in the driver is not the optimal solution. i prefer having this feature in alsa-lib. the only drawback of implementing in alsa-lib is that the kernel OSS emulation cannot support it, and that would surely annoy people. Takashi ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click