From: Phil <pcallihan@...>
Date: 2003-12-21T16:16:53+09:00
Subject: Re: Trouble using IO::ioctl

nobu.nokada@softhome.net wrote:
> Hi,
> 
> At Sun, 21 Dec 2003 14:26:54 +0900,
> Phil Callihan wrote:
> 
>>SOUND_MIXER_READ_DEVMASK = 0x80044dfe
>>mixer = File.open("/dev/mixer", "w+")
> 
>   devmask = [0].pack("i")
>   mixer.ioctl(SOUND_MIXER_READ_DEVMASK, devmask)
>   devmask = devmask.unpack("i")[0]
>   printf "devmask[%08x]\n", devmask
> 
Thank you for the help.  That fix the problem.  I could find any 
documention except for the paragraph in Pickaxe.

Phil Callihan (pc)