From owner-freebsd-hackers@FreeBSD.ORG  Tue Dec  2 21:35:07 2008
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Date: Tue, 2 Dec 2008 22:30:21 +0100
From: Roman Divacky <rdivacky@freebsd.org>
To: Arjan van der Velde <noresult@xs4all.nl>
Message-ID: <20081202213021.GA14877@freebsd.org>
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Cc: freebsd-hackers@freebsd.org, ed@freebsd.org
Subject: Re: TCSBRK not implemented in linux compat
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On Tue, Dec 02, 2008 at 09:56:28PM +0100, Arjan van der Velde wrote:
> Hi,
> 
> While trying to get a linux binary running on FreeBSD I encountered  
> the following problem during serial port I/O.
> 
> Dec  1 22:22:34 soekris kernel: linux: pid 7239 (linuxbinary): ioctl  
> fd=0, cmd=0x5409 ('T',9) is not implemented
> 
> 0x5409  turns out to be TCSBRK, which is not implemented (yet?). Can  
> anyone give me some clues where / how to start implementing this? It  
> seems like the linux way of handling it is to call tcdrain(), but I'm  
> not sure as to how this translates to the FreeBSD compat layer.

I believe you want to talk to Ed Schouten as this is a TTY thing..

I CCed him