Re: usb-serial ipaq kernel problem

[Frank Gevaerts <frank.gevaerts@fks.be>]

On Tue, May 30, 2006 at 11:33:27AM -0700, Pete Zaitcev wrote:
> On Tue, 30 May 2006 19:48:21 +0200, Frank Gevaerts <frank.gevaerts@fks.be> wrote:
> +0100
> > +++ linux-2.6.17-rc4.test/drivers/usb/serial/ipaq.c	2006-05-30 19:41:19.000000000 +0200
> > @@ -692,6 +694,7 @@ static void ipaq_close(struct usb_serial
> >  	struct ipaq_private	*priv = usb_get_serial_port_data(port);
> >  
> >  	dbg("%s - port %d", __FUNCTION__, port->number);
> > +
> >  			 
> >  	/*
> >  	 * shut down bulk read and write
> 
> Please get rid of the above.

OK. I missed one while cleaning up.

> > @@ -967,3 +971,6 @@ MODULE_PARM_DESC(vendor, "User specified
> >  
> >  module_param(product, ushort, 0);
> >  MODULE_PARM_DESC(product, "User specified USB idProduct");
> > +
> > +module_param(connect_retries, int, KP_RETRIES);
> > +MODULE_PARM_DESC(product, "Maximum number of connect retries (100ms each)");
> 
> Personally, I'm not keen on adding knobs.

As far as I can see, the alternatives are that either it does not work
without patches for scenarios where the ipaq is rebooted while connected
(like we do), since these need a large number of retries (up to 3500 in
our tests today, about 6 minutes), or the default value is much higher
than the current 100 (which gives a 10 seconds timeout).

I'm not sure what the best solution is.

Frank

> 
> -- Pete

-- 
Frank Gevaerts                                 frank.gevaerts@fks.be
fks bvba - Formal and Knowledge Systems        http://www.fks.be/
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B-3570 ALKEN                                   Fax:  ++32-(0)11-22 04 19
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