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Date:      Mon, 15 Oct 2007 23:03:28 +0200
From:      Hans Petter Selasky <hselasky@c2i.net>
To:        "Xiaofan Chen" <xiaofanc@gmail.com>
Cc:        freebsd-usb@freebsd.org
Subject:   Re: PICkit 2 again with HPS stack
Message-ID:  <200710152303.29294.hselasky@c2i.net>
In-Reply-To: <a276da400710130252k2d2d0db2n2ac1f40c20b64a1b@mail.gmail.com>
References:  <a276da400710120332h5f780ee8g9a12d5fb5548f8da@mail.gmail.com> <200710121912.03585.hselasky@c2i.net> <a276da400710130252k2d2d0db2n2ac1f40c20b64a1b@mail.gmail.com>

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On Saturday 13 October 2007, Xiaofan Chen wrote:
> On 10/13/07, Hans Petter Selasky <hselasky@c2i.net> wrote:
> > Resource temporarily unavailable maps to EAGAIN
> > according to "man errno". From what I can see from the log
> > you have provided this means that the "msleep()"
> > call in "ugenread" timed out.
> >
> > What timeout have you programmed in your PICkit ?
>
> It is 1000ms. I change it to 10000ms but this does not help.

Do you see this timeout ? Does the code actually wait 10 seconds ?

In the file "ugen.c" in the function "ugen_open_pipe_read()" you will find 
a "case UE_INTERRUPT:". Some lines further down you will find:

                  /* first transfer clears stall */
                  sce->read_stall = 1;

This you can set to "0". Then recompile and install the "ugen" module and/or 
kernel.

Does your USB hardware work now ?

--HPS



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