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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