Date: Sun, 20 Feb 2000 00:27:14 +0200 (EET) From: Victor Ivanov <v0rbiz@ab-bg.net> To: hackers@freebsd.org Subject: Re: Bug in ioctl() [Was: Help needed with ioctl() calls] Message-ID: <Pine.BSF.4.21.0002200011120.12127-100000@bissy.ab-bg.net> In-Reply-To: <20000219184059.A327@marder-1>
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mixer uses 100 levels for each "device" (master volume, pcm, synth, etc), but your hardware maybe uses 64 (or 128). mixer needs to be universal.. so does the ioctl() and the interface to the hardware mixer. Look at the sources in the kernel :)... maybe you'll find something like this (which looses accuracy, but there's no other way): percent = actual * 100 / 64; in this case both 91 and 92 are 58 when measuring 1..64 and this is not a bug :) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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