Date: Wed, 3 Dec 2008 20:28:29 +0100 From: Arjan van der Velde <noresult@xs4all.nl> To: Ed Schouten <ed@80386.nl> Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: TCSBRK not implemented in linux compat Message-ID: <E5326705-C609-42C0-A0FE-9242AEEE0D7B@xs4all.nl> In-Reply-To: <20081202221349.GT64969@hoeg.nl> References: <54A75E03-AE64-4DD9-8D15-7A7499E73D43@xs4all.nl> <20081202221349.GT64969@hoeg.nl>
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Hi, thanks. I think for now I can work around this although it would
be nice to have this implemented.
Regards,
Arjan
On Dec 2, 2008, at 11:13 PM, Ed Schouten wrote:
> Hello Arjan,
>
> * Arjan van der Velde <noresult@xs4all.nl> wrote:
>> 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 think you could just make it call TIOCDRAIN directly. Unfortunately
> that's not correct if the argument is 0, because then we have to call
> TIOCSBRK and TIOCCBRK with a 250 msec interval. I guess adding some
> kind
> of printf() there should be good enough for now.
>
> I can't look into it right now, because I have to get up at 6:15
> tomorrow. Sorry! :-/
>
> --
> Ed Schouten <ed@80386.nl>
> WWW: http://80386.nl/
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