[irda-users] Re: F'up: uClinux-uCLinux IrDA communication hangs

[Jean T. <jt...@bo...>]

On Thu, Jun 19, 2003 at 03:39:59PM -0700, Christian Sauer wrote:
> Jean, 
> 
> Sorry but your patch didn't fix it (would have been to easy :-( ... ).
> Here it comes: the new dmesg.

	Hum....

> --Christian
> 
> 
> *** RECEIVER *** 
> 
> irttp_run_rx_queue() initial=16,send=15,avail=0,remote=8
> irttp_run_rx_queue() rx_queue len: 1 ; rx_fragment len: 0

	At that point, I expect the flow control to kick in, but it
doesn't :

> irda_data_indication()
> irlap_do_event(), event = RECV_I_CMD, state = LAP_NRM_S

	You will need to debug that one for me by hand.
	At the end of the function irttp_run_rx_queue() - the same
where I did the patch - there is the calculation of self->avail_credit
- the snipet I quoted in the previous e-mail. Just after this
calculation, print in the log the value of self->avail_credit (using
the same IRDA_DEBUG() stuff).
	Also, put another IRDA_DEBUG() statement to check if the code
goes into the branch and execute irttp_give_credit(self);

	I suspect that your kernel source is bogus, so check the
irttp.c file against the one in 2.4.21.

	Thanks...

	Jean