ioctl IOError

[Steve Purcell]

Christopher N. Deckard wrote:
> def getvolume(self):
> 	value = 0
> 	fnctl.ioctl(self.fd, SOUND_MIXER_READ_LINE, value)
> 	return (((value & 0xff) + (value >> 8)) / 2)
> 
> When I simply call the 'getvolume' function, I get:
> IOError: (14, 'Bad address')

Are you maybe using the return value from 'open()' as the file descriptor?

To get the real file descriptor from a python file object, you need to call
its 'fileno()' method. Ignore me if you're already doing that.

-Steve

-- 
Steve Purcell,  Technical Director, Inkontact
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