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Date:      Thu, 20 May 1999 18:41:09 -0400
From:      Christopher Masto <chris@netmonger.net>
To:        Warner Losh <imp@harmony.village.org>
Cc:        Evan Tsoukalas <evan@falcon.sourcee.com>, freebsd-mobile@FreeBSD.ORG
Subject:   Re: Sony VAIO 505TS
Message-ID:  <19990520184109.A3840@netmonger.net>
In-Reply-To: <199905201903.NAA06833@harmony.village.org>; from Warner Losh on Thu, May 20, 1999 at 01:03:21PM -0600
References:  <19990520114743.A21923@netmonger.net> <19990520000832.A27034@netmonger.net> <19990519130507.A7848@falcon.sourcee.com> <19990520000832.A27034@netmonger.net> <199905200711.BAA04332@harmony.village.org> <19990520114743.A21923@netmonger.net> <199905201903.NAA06833@harmony.village.org>

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On Thu, May 20, 1999 at 01:03:21PM -0600, Warner Losh wrote:
> In message <19990520114743.A21923@netmonger.net> Christopher Masto writes:
> : Actually, the devices that I most want to talk to are my PalmPilot and
> : digital camera, which I think both use SIR.
> : It should be possible to
> : pretend the IR port is just a 16550.  
> 
> That is SIR mode.  SIR just means SLOW IR, so is limited to 115200
> baud.  The 505TS will do FIR as well.

It will, but since I don't have any FIR devices, it doesn't matter to
me that much. :-)

> : It is detected when I set the
> : address and IRQ correctly, but when I ran "cu", it didn't seem to
> : transmit anything.  I just looked at it through a video camera which
> : is very sensitive to IR, and I saw nothing while typing characters.
> 
> At any speed above 2400 baud, I dodbt that you'd actually see the
> characters transmitted.  The on time is very very short (on the order
> of < 1mS).

The shutter speed on my camera is low enough that it's quite visible
even at 57600.

> : It also received nothing when I beamed my pilot or digital camera at
> : it.  I suspect it needs some initialization, but haven't had much
> : time to wade through the specs (I think it uses the SMC IRCC chip).
> 
> You won't.  The IrDA stuff has the master broadcasting before the
> slaves will respond.  There is a protocol that needs to happen...

For SIR, it just transmits what you send it.  It's a plain old serial
stream.  There are layers on top of this (IrCOMM, etc.) but I'm not
using them.

The problem was apparently an I/O port conflict.  I thought I could
just disable the serial port and set the IrDA to the same (0x3f8,
IRQ4).  No go.  Once I set it to 0x3e8, IRQ4, it started working.
I'm syncing my pilot right now.
-- 
Christopher Masto         Senior Network Monkey      NetMonger Communications
chris@netmonger.net        info@netmonger.net        http://www.netmonger.net

Free yourself, free your machine, free the daemon -- http://www.freebsd.org/


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