q: USB_SET_TIMEOUT in ugen.

[Hans Petter Selasky]

On Wednesday 18 March 2009, Weongyo Jeong wrote:
> On Wed, Mar 18, 2009 at 08:52:47AM +0100, Hans Petter Selasky wrote:
> > Hi,
> >
> > On Wednesday 18 March 2009, Weongyo Jeong wrote:
> > > Hello,
> > >
> > > During porting uath(4) to usb2 I found the following code failed to
> > > run:
> > >
> > > 	data = open("/dev/usb/0.2.2", O_WRONLY, 0);
> > > 	timeout = UATH_DATA_TIMEOUT;
> > > 	if (ioctl(data, USB_SET_TIMEOUT, &timeout) < 0)
> > > 		err(-1, "%s: USB_SET_TIMEOUT(%u)", datadev,
> > > 		    UATH_DATA_TIMEOUT);
> > >
> > > and the error was:
> > >
> > > 	uathload: /dev/usb/0.2.2: USB_SET_TIMEOUT(1000): Invalid
> > >         argument
> >
> > Use the following macro instead:
> >
> > #define USB_SET_TX_TIMEOUT      _IOW ('U', 137, int)
> >
> > There also is a match for USB_SET_RX_TIMEOUT .
> >
> > USB_SET_TIMEOUT has been removed.
> >
> > Also don't forget to include "usb_ioctl.h" .
> >
> > Another idea:
> >
> > Port the program to libusb ....
> >
> > > It looks it's ok with calling ioctl(msg, USB_SET_TIMEOUT, ..) to
> > > /dev/usb/0.2.1
> > >
> > > And the behaviour of program isn't likely with usb1 that it worked well
> > > in usb1.  After writing some data into msg and data pipe there was no
> > > any response using read(2).  The problem source can be found at:.
> > >
> > > 	http://perforce.freebsd.org/depotTreeBrowser.cgi?FSPC=//depot/user/weo
> > >ngyo /wireless/src/usr.sbin/uathload&HIDEDEL=NO
> > >
> > > Are there something I missed in here?
> >
> > See hints above.
>
> Thank you for advise. :-)  I've solve `Invalid argument' error.  However
> the program looks it still doesn't work.  All functions the problem used
> are open(2), ioctl(2), read(2) and write(2).  I think I can try to use
> libusb but it'd be better if it works again using the above 4 system
> calls.
>
> Is it supported in CURRENT or is it a one of regression?
>
> regards,
> Weongyo Jeong

What other IOCTL's are used?

Can you make a debug trace:

sysctl hw.usb2.ugen.debug=15
sysctl hw.usb2.dev.debug=15

?

--HPS