svn commit: r186730 - in head: lib/libusb20 sys/dev/usb2/controller sys/dev/usb2/core sys/dev/usb2/ethernet sys/dev/usb2/image sys/dev/usb2/include sys/dev/usb2/serial sys/dev/usb2/sound sys/dev/us...

[Stanislav Sedov]

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On Tue, 6 Jan 2009 21:04:14 +0100
Hans Petter Selasky <hselasky at c2i.net> mentioned:

> On Tuesday 06 January 2009, Stanislav Sedov wrote:
> > On Tue, 6 Jan 2009 20:43:19 +0100
> >
> > Hans Petter Selasky <hselasky at c2i.net> mentioned:
> > > On Tuesday 06 January 2009, Stanislav Sedov wrote:
> > > > On Tue, 6 Jan 2009 20:04:51 +0100
> > > >
> > > > Hans Petter Selasky <hselasky at c2i.net> mentioned:
> > > > > On Tuesday 06 January 2009, Stanislav Sedov wrote:
> > > > > > http://www.SpringDaemons.com/stas/dmesg
> > > > >
> > > > > From the debug messages it might look like your device has a problem
> > > > > with clearing the stall. Try commenting out the following lines in
> > > > > "ubsa2.c":
> > > > >
> > > > >         /* clear stall at first run */
> > > > >         sc->sc_flag |= (UBSA_FLAG_WRITE_STALL |
> > > > >             UBSA_FLAG_READ_STALL);
> > > >
> > > > This doesn't affect anything. :-(
> > > >
> > > > BTW, sometime I see the following after plugging in the module:
> > >
> > > In the function "ubsa_cfg_request":
> > >
> > > Try:
> > >
> > > 1) Always return - no requests: Do you get AT+OK back on the modem
> > > channel?
> >
> > This doesn't change anything.
> >
> > > 2) Add pause("DLY", hz / 10); in that function.
> >
> > After this change the device began to work (that is I'm receiving
> > replies for AT commands). However I can connect to it only once,
> > after disconnecting "cu" I can communicate with it again only after
> > device reset (or reattach).
> 
> Can you send me change 2) with debugging output?

Unfortunately, it stopped working for some reason. :-( Probably, I need
to reboot. Anyway the change was like this:
@@ -384,6 +390,8 @@
        req.wIndex[1] = 0;
        USETW(req.wLength, 0);
 
+       pause("DLY", hz / 10);
+
        err = usb2_do_request_flags
            (sc->sc_udev, &Giant, &req, NULL, 0, NULL, 1000);

What kind of debugging info are you interested in? Should I enable
hw.usb2.ubsa.debug?

Thanks!

- -- 
Stanislav Sedov
ST4096-RIPE
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