Messages in this thread | | | Date | Sat, 29 Mar 2003 08:31:51 -0800 | From | David Brownell <> | Subject | Re: netchip's net2280 usb 2.0 device |
| |
Hi,
> We have been using the net2280 chip (usb 2.0) as a usb target > printer device. We have been seeing data corruption problems > during a bulk out transfer when data is taken out the device > quite slow. The corruption size is only 4 bytes suggesting > a device problem. Is anyone using this chip and has anyone > encountered similar problem?
I've certainly been using it ... there's a Linux driver for it, part of a "USB Gadget" framework that could support other such "target mode" hardware, at http://kernel.bkbits.net/~david-b for general use. (Download from BK, the 2.5.64 patch doesn't include the net2280 driver and there's no 2.4 patch yet. I'll send out an announcement soon, when I update the patches.)
I haven't run into that particular problem, but it sounds like it might be a known erratum ... have you asked NetChip, or checked the 14-March errata at their website? They've been pretty responsive to my questions.
> Is there any other 2.0 usb chip that can be used as a target mode > device?
The net2280 is the only such chip I know of that talks PCI directly. So it's particularly Linux-friendly: it doesn't need special bus adapter hardware.
- Dave
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |