Date: Fri, 8 Feb 2002 18:58:51 +0100 From: Rahul Siddharthan <rsidd@online.fr> To: cameron grant <gandalf@vilnya.demon.co.uk> Cc: "Eugene M. Kim" <gene@nttmcl.com>, Cameron Grant <cg@FreeBSD.ORG>, FreeBSD Multimedia Mailing List <multimedia@FreeBSD.ORG> Subject: Griffin iMic (was Re: Recording on ICH) Message-ID: <20020208185851.B54145@lpt.ens.fr> In-Reply-To: <01c801c1b010$9bd69060$4004020a@haveblue>; from gandalf@vilnya.demon.co.uk on Thu, Feb 07, 2002 at 07:49:52PM -0000 References: <20020207112506.A3815@alicia.nttmcl.com> <01c801c1b010$9bd69060$4004020a@haveblue>
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cameron grant said on Feb 7, 2002 at 19:49:52: > > What would be the best solution against things like this (having > > multiple incompatible channels)? > > this is fixed in -current by creating /dev/dsprX.Y devices which refer to > specific recording channels. it will be mfc'd soon. I'm having a problem which sounds similar, perhaps it's related? I'm trying to use the Griffin iMic USB audio device (http://www.griffintechnology.com/audio/imic_main.html). This device works perfectly for me with linux (except that it doesn't support full duplex, but I'm not sure it's supposed to). With FreeBSD I tried the USB audio patch at http://www.mars.sphere.ne.jp/navi/uaudio/ which I was pointed to on this list. It works for audio output but not for input. On linux, when I insert it, two mixer devices get registered (/dev/sound/mixer and /dev/sound/mixer1), the former for PCM output and the other for mic input, and I can read or write to /dev/sound/dsp. On freebsd, I can't read from /dev/dsp and there is only one mixer device, the PCM output one, no recording device. In addition, it's terribly unstable -- every now and then it causes a kernel panic, which is in particular triggered by removing the device when sound output is going on, but can happen otherwise too apparently randomly. I guess it's a problem with the USB audio driver. I don't really know how to investigate this further (I can take a kernel crash dump and run kgdb on it but I can't understand the results). I did email the author on the above webpage. (It's perfectly stable on linux.) Thanks - Rahul To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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