Date: Mon, 21 Sep 2009 16:10:03 -0400 From: Pierre-Luc Drouin <pldrouin@pldrouin.net> To: Ed Schouten <ed@80386.nl> Cc: freebsd-usb@freebsd.org Subject: Re: usb/138659: uftdi driver broken in RELENG_8/CURRENT Message-ID: <4AB7DD9B.8070707@pldrouin.net> In-Reply-To: <20090921195920.GE95398@hoeg.nl> References: <4AB6DA79.7050209@pldrouin.net> <200909211827.53014.hselasky@c2i.net> <20090921194933.GB95398@hoeg.nl> <4AB7DA4B.8050105@pldrouin.net> <20090921195920.GE95398@hoeg.nl>
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Ed Schouten wrote: > Hello Pierre-Luc, > > * Pierre-Luc Drouin <pldrouin@pldrouin.net> wrote: > >> Here is what I get from pstat when I run my executable: >> >> while ( 1 ) >> while? pstat -t ttyU0 | grep ttyU0 >> while? sleep 1 >> while? end >> LINE INQ CAN LIN LOW OUTQ USE LOW COL SESS PGID STATE >> ttyU0 0 0 0 0 0 0 0 4 0 0 ICl >> > <snip> > >> ttyU0 1920 0 0 192 1984 0 199 6 0 0 ICOil >> > > That all makes sense. Just let me know what it looks like when things go > sour. If it still displays the above mentioned lines, then I suspect it > to be a more complex problem... > > Well in my case (not to be confused with the starter of this thread), I simply cannot read any data. It hangs forever at the first read statement on FreeBSD in synchronous mode, or I get EINTR if I try reading in ASYNC mode after SIGIO is sent, independently of the number of bytes I try reading. All these tests run smoothly on Linux. Pierre-Luc Drouin
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