From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?iso-8859-1?Q?R=FCdiger_Dabelow?= Subject: AW: maestro3 hardware volume control Date: Tue, 19 Apr 2005 12:55:00 +0200 Message-ID: <000501c544ce$3d437530$6502a8c0@SCA600> References: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: 'Takashi Iwai' Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org > Von: Takashi Iwai > Gesendet: Dienstag, 19. April 2005 11:50 > Betreff: Re: [Alsa-devel] maestro3 hardware volume control > > At Mon, 18 Apr 2005 15:22:58 +0200, > rwd wrote: > > > > Hi, > > > > the maestro3 runs fine on my compaq evo n400c (ES1988). > Just one thing > > remains unsolved - the 2 nice volume control buttons that > seem to be wired > > directly to the ES1988 won't work until now. > > > > I'm relatively new to linux and not a driver programmer, > but scrolling > > through the documentation of the chip & the driver source > quickly revealed > > that the volume can be controlled directly by two buttons, > but the driver > > doesn't seem make use of that. > > > > Can anybody give me a hint how to use/enable the hardware > volume control on > > that chip? Is a major rewrite of the driver required? Maybe > some other > > driver could do that? The es1968 seems to support hw vol, > might that driver > > run also on the ES1988? > > The problem is -- we don't know. We have no proper datasheet for this > chip... > > > Takashi Hi, Sorry, don't understand: the driver es1968.c enables and uses #define HWV_CONFB 0x0080 w |= HWV_CONFB; /* HWV on */ pci_write_config_word(pci, ESM_CONFIG_B, w); and handles the irq. The es1968.c driver handles the Maestro-2, does it? http://www.alsa-project.org/alsa/ftp/manuals/ess/DSMaestro2.pdf Same registers as described in the datasheet for the ES1988/Allegro/Maestro-3 http://www.alsa-project.org/alsa/ftp/manuals/ess/ds1988.pdf What info is missing? Ruediger ------------------------------------------------------- This SF.Net email is sponsored by: New Crystal Reports XI. Version 11 adds new functionality designed to reduce time involved in creating, integrating, and deploying reporting solutions. Free runtime info, new features, or free trial, at: http://www.businessobjects.com/devxi/728