Re: USB-1.1 fails with USB 2.0 Hub [was: Re: USB-Serial fails with USB 2.0 Hub]

[Gregor Jasny <gjasny@gmx.de>]

On Thursday 11 November 2004 20:03, you wrote:
> On Monday 08 November 2004 16:49, you wrote:
> > Two problems with kernel 2.6.4 (SuSe 9.1):
> >
> > 1) When I use a Belkin F5U409 usb-serial converter:
> >      - when plugged directly into chipset (Intel ICH5), works great.
> >      - when plugged in through a USB 1.0 hub, works great
> >      - when plugged in throught USB 2.0 Hub (Belkin F5U237), fails.
> >        Failure mechanism is: Tx works, Rx does not.
>
> Just a simple me, too. I've got the problem with a TerraCAM USB Pro.
> Plugged into my Apple Keyboard it works (with a warning about high power
> consumption). But if I plug it into my Belkin F5U237 the driver complains
> with: "drivers/usb/media/ov511.c: init isoc: usb_submit_urb(0) ret -38".

A simple list of working and nonworking devices:

Works:
* Logitech MouseMan Optical Dual
* Apple Pro Keyboard
* Iomega ZIP 100

Works not:
* TerraCAM USB Pro: (ov511 v2.28)
drivers/usb/media/ov511.c: init isoc: usb_submit_urb(0) ret -38

* USB-to-Serial (pl2303)
pl2303_open - failed submitting interrupt urb, error -28


Perhaps a driver programming bug?

Cheers,
-Gregor