From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: IRDA/IRCOMM on a TiBook patch From: Michel =?ISO-8859-1?Q?D=E4nzer?= To: Till Straumann Cc: linuxppc-dev@lists.linuxppc.org, linux-irda@pasta.cs.uit.no In-Reply-To: <3BCFCA2C.CACD571B@TU-Berlin.de> References: <3BCC104D.B5770ADE@TU-Berlin.de> <1003453347.24371.912.camel@pismo> <3BCFCA2C.CACD571B@TU-Berlin.de> Content-Type: text/plain; charset=ISO-8859-1 Date: 19 Oct 2001 16:10:42 +0200 Message-Id: <1003500642.4732.451.camel@pismo> Mime-Version: 1.0 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Fri, 2001-10-19 at 08:37, Till Straumann wrote: > > Michel Dänzer wrote: > > > > On Tue, 2001-10-16 at 12:47, Till Straumann wrote: > > > > > I (and I believe other people as well) had problems > > > setting up IRDA/IRCOMM on a TiBook / 2.4.12-benh and > > > older 2.4 series kernels [on powerpc]. > > > > > > As far as I could find out there are several problems: > > > > > > 1) There seems to be a timing problem when opening > > > the irda port which prevents it from being properly > > > initialized. > > > > > > When I run "irattach /dev/ttyS1 -s 1", my Nokia 8890 > > > is never discovered. However, when I issue a 'cat /dev/ttyS1', > > > prior to starting irattach (i.e. by opening the device > > > [and holding it open until irattach starts]), > > > things are properly initialized > > > and discovery works. Putting 'mdelay(100);' somewhere > > > in macserial.c:rs_open() does the job. However, I have > > > not yet figured out what exactly causes the problem. > > > A user space work-around involves patching irattach.c > > > > > > 2) There is an endianness bug. A possible solution is attached. > > > > Your patch seems to be missing a bit (in qos.c IIRC) though. > > What is it missing? Please, be a little bit more verbose :-) The same thing you're doing for the other files, i.e. replace param->pv.b by param->pv.b.ll and param->pv.s by param->pv.s.l . The build fails for that file otherwise. I'm talking about net/irda/qos.c BTW. > > > 3) When applying 1) and 2), IRCOMM works provided that > > > /proc/sys/net/irda/max_baud_rate is clamped to 57600. > > > Apparently, there is another problem in 'macserial.c' where speeds > > > higher than 57600 are treated especially. > > > > Have you managed to do anything 'real' yet? I tried your patch, and it > > does seem to improve things, irdadump seems to show data from my Palm, > > but I haven't succeeded to synchronize yet. > > > > Sure - I can open a modem connection to my cellphone and issue any AT > command I want. However, I have to take care of all of the three issues > mentioned. (I.e. use patched irattach, use patched kernel and > echo 57600 > /proc/sys/net/irda/max_baud_rate). I have done the latter two and used cat to work around the first. I see something with irdadump but none of the pilot sync tools work. I'm afraid they're broken on PPC yet. :( -- Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer XFree86 and DRI project member / CS student, Free Software enthusiast ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/