USB Device I need to work -- still doesn't

[joem]

I need this (details below) USB device to work on my guest Win2k so I can get rid of a PC. If it doesn't, Parallels is still useful, but I still need to maintain a PC for one app, so I'd like this to work. Here's the USB Prober output describing the device. It doesn't work in RC1, nor did it in betas 5 or 6. Please make it work, or tell my why you can't.

Thanks

Full Speed device @ 3 (0x1D100000): ............................................. Composite device: "Ross-Tech KEY-USB"
Device Descriptor
Descriptor Version Number: 0x0110
Device Class: 0 (Composite)
Device Subclass: 0
Device Protocol: 0
Device MaxPacketSize: 8
Device VendorID/ProductID: 0x0403/0xFA20 (Future Technology Devices International Limited)
Device Version Number: 0x0400
Number of Configurations: 1
Manufacturer String: 1 "Ross-Tech"
Product String: 2 "Ross-Tech KEY-USB"
Serial Number String: 0 (none)
Configuration Descriptor
Length (and contents): 32
Raw Descriptor (hex) 0000: 09 02 20 00 01 01 00 80 19 09 04 00 00 02 FF FF
Raw Descriptor (hex) 0010: FF 02 07 05 81 02 40 00 00 07 05 02 02 40 00 00
Unknown Descriptor 0020:
Number of Interfaces: 1
Configuration Value: 1
Attributes: 0x80 (bus-powered)
MaxPower: 50 ma
Interface #0 - Vendor-specific
Alternate Setting 0
Number of Endpoints 2
Interface Class: 255 (Vendor-specific)
Interface Subclass; 255 (Vendor-specific)
Interface Protocol: 255
Endpoint 0x81 - Bulk Input
Address: 0x81 (IN)
Attributes: 0x02 (Bulk no synchronization data endpoint)
Max Packet Size: 64
Polling Interval: 0 ms
Endpoint 0x02 - Bulk Output
Address: 0x02 (OUT)
Attributes: 0x02 (Bulk no synchronization data endpoint)
Max Packet Size: 64
Polling Interval: 0 ms

 

[joem]

Better in RC2 but not quite there yet

The device works intermittantly in RC2, probably because it isn't being serviced fast enough. The error message is "Too many communication errors", and I can see it trying various communication rates, failing, trying again, getting some results and eventually giving up.

Some operations succeed, but it eventually (after two or three commands) fails.

It works flawlessly on an 750 Mhz Windows box.

Maybe one more try and it will work????

We're so close!

 

[joem]

It's working better, to the point where it's mostly usable, but it's still reporting communication errors that my much slower PC laptop doesn't report. Works fine a real PC. Haven't tried bootcamp, and won't for a month or so while waiting for this to get better. It's gone from unusable to mildly annoying.

 

[Andrew @ Parallels]

Thanks for reporting - we will investigate this.