neophyte: tcsetattr() gives 22 error in i386, not in amd64?

Jeremy Chadwick koitsu at FreeBSD.org
Sat Oct 25 07:56:50 UTC 2008


On Sat, Oct 25, 2008 at 06:06:38PM +1030, en0f wrote:
> Nate Eldredge wrote:
> > On Fri, 24 Oct 2008, Steve Franks wrote:
> > 
> >> Hi,
> >>
> >> I'm getting a 22 errno from tcsetattr() on 7-STABLE i386 in code which
> >> was working under 7-STABLE amd64.  Serial device is a ucom (silabs
> >> cp2103).  Permissions on /dev/cuaU0 look fine.  Cutecom/Minicom
> >> appears to open the port without error...
> > 
> > I don't see anything obviously wrong, but I'd bet a bug related to
> > 32/64-bit types.  Can you post a complete piece of code that can be
> > compiled and run and demonstrates the problem?  Also, try compiling with
> > -Wall -W and investigate any warnings that are produced.
> > 
> > By the way, errno 22 is EINVAL, "Invalid argument".  perror() is your
> > friend.
> 
> Strange freebsd doesnt document error numbers. On POSIX, errno 22 is
> EINVAL as well (documented in errno(3)). Is this applicable to freebsd?

/usr/include/errno.h isn't documentation of error numbers?

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |



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