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Date:      Thu, 04 Dec 2008 13:36:57 -0500
From:      Gabor <gabor@sentex.net>
To:        freebsd-usb@freebsd.org
Subject:   Re: ucom serial bug?
Message-ID:  <49382349.5040804@sentex.net>
In-Reply-To: <20081204.111528.1723218601.imp@bsdimp.com>
References:  <4936DF1D.8000405@sentex.net>	<200812041720.mB4HKdJP017318@lava.sentex.ca>	<200812041853.35539.hselasky@c2i.net> <20081204.111528.1723218601.imp@bsdimp.com>

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Hi,

thanks for looking at this issue.  Are you guys saying that this was not meant to work?  As in I shouldn't expect to see carrier?

On 12/4/08 1:15 PM, M. Warner Losh wrote:
> In message: <200812041853.35539.hselasky@c2i.net>
>             Hans Petter Selasky <hselasky@c2i.net> writes:
> : On Thursday 04 December 2008, Mike Tancsa wrote:
> : > At 02:33 PM 12/3/2008, Gabor wrote:
> : > >everything works fine.  When we try to use a USB to serial
> : > >converter(type doesn't matter, UFTDI or Prolific) we run into
> : > >problems. The first time we start up our side, everything
> : > >works.  The second time we don't get carrier(DCD).  The other side
> : > >is always running. Since we have no control
> : >
> : > Also tried with the usb2 development stack, and we never see carrier.
> : >
> : > Id Refs Address    Size     Name
> : >   1   20 0xc0400000 9f8014   kernel (/boot/kernel/kernel)
> : >   2    1 0xc4b95000 3000     usb2_serial_ftdi.ko
> : > (/boot/kernel/usb2_serial_ftdi.ko)
> : >   3    5 0xc4b99000 36000    usb2_core.ko (/boot/kernel/usb2_core.ko)
> : >   4    1 0xc4c56000 4000     usb2_serial.ko (/boot/kernel/usb2_serial.ko)
> : >   5    1 0xc4cb4000 a000     usb2_controller_uhci.ko
> : > (/boot/kernel/usb2_controller_uhci.ko)
> : >   6    2 0xc4cbe000 3000     usb2_controller.ko
> : > (/boot/kernel/usb2_controller.ko)
> : >   7    1 0xc4d50000 d000     usb2_controller_ehci.ko
> : > (/boot/kernel/usb2_controller_ehci.ko)
> : >
> : 
> : Hi,
> : 
> : I think this event is not implemented in the driver. Try to diff the NetBSD 
> : and FreeBSD uftdi.c files.
> 
> I have some diffs in my inbox from someone that was trying to
> implement modem control for uftdi chips.  Let me see if they make
> sense...
> 
> Warner
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-- 
Success is the result when preparation meets opportunity.



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