From: Marcel Holtmann <marcel@holtmann.org>
To: Jeff Sutherland <jeffs@fairwayacademy.org>
Cc: BlueZ Mailing List <bluez-users@lists.sourceforge.net>
Subject: Re: [Bluez-users] Mysterious problem with l2test on Coldfire 5282
Date: Tue, 17 Feb 2004 16:43:23 +0100 [thread overview]
Message-ID: <1077032602.2665.12.camel@pegasus> (raw)
In-Reply-To: <200402170924.31121.jeffs@fairwayacademy.org>
Hi Jeff,
> Using the l2test program on Motorola 5282 (uClinux) I have a strange behaviour
> when using l2test -s from the Moto board. Using the -d (dump) mode to
> receive packets from a PC running l2test I see what appears to be the packet
> sequence number in the first 4 bytes of data (little endian), followed by a 2
> byte packet length, then data payload. When dumping data from the PC the
> packet sequence number increments by 1 each time, which, I believe, is the
> expected behaviour. However, when sending from the Moto board to the PC, the
> packet sequence number increments by 4 each time. ????? L2test send looks
> ok, the sequence number is just seq++; so something must be going on in hcid,
> right? Or maybe it's dropping 3 out of 4 send packets for some reason.
> Maybe something cocked up with the socket ops in l2test? ????? Debugging
> pointers, please...
maybe this code in send_mode() is the problem
*(uint32_t *) buf = htobl(seq++);
*(uint16_t *)(buf+4) = htobs(data_size);
Replace it with
*(uint32_t *) buf = htobl(seq);
*(uint16_t *)(buf+4) = htobs(data_size);
seq++;
I am not a uClinux or compiler expert, so this is only guess.
Regards
Marcel
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next prev parent reply other threads:[~2004-02-17 15:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-17 14:24 [Bluez-users] Mysterious problem with l2test on Coldfire 5282 Jeff Sutherland
2004-02-17 15:43 ` Marcel Holtmann [this message]
2004-02-17 16:26 ` Jeff Sutherland
2004-02-17 18:35 ` Marcel Holtmann
2004-02-17 21:47 ` Jeff Sutherland
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