Re: [ANNOUNCE] FUSD v1.00: Framework for User-Space Devices

From: Pavel Machek (
Date: Mon Oct 08 2001 - 07:20:13 EST


> > Yep. And linmodem driver does signal processing, so it is big and
> > ugly. And up till now, it had to be in kernel. With your patches, such
> > drivers could be userspace (where they belong!). Of course, it would be
> > very good if your interface did not change...
> I don't see how linmodem drivers apply. At least not at the low-level
> because you actually have to driver the hardware, respond to interrupts
> etc. On some of this I can see a driver split like there is for the video

You don't actually need interrupts -- you *know* when next sample arrives.
And port io is completely fine with iopl() ;-).

Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt,
details at

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