Messages in this thread |  | | From | Phil Thompson <> | Subject | RE: User Space Emulation of Devices | Date | Thu, 13 Sep 2001 09:25:52 +0100 |
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> -----Original Message----- > From: Pavel Machek [mailto:pavel@suse.cz] > Sent: 12 September 2001 11:28 > To: Phil Thompson; 'linux-kernel@vger.kernel.org' > Subject: Re: User Space Emulation of Devices > > > Hi! > > > Without going into the gory details, I have a requirement > for a device > > driver that does very little apart from pass on the > open/close/read/write > > "requests" onto a user space application to implement and > pass back to the > > driver. > > > > Does anything like this already exist? > > Something like that which would also pass ioctl()s would be *very* > welcome.
The best approach I found (for my purposes anyway) was the one used by the ALSA OSS emulator (and strace as well?) that uses weak & strong symbols in a pre-loaded shared library to intercept system calls to the device I wanted to handle in user space.
I'd be surprised if this technique was suitable as a generic approach.
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