Hello On Wed, 1 Jun 2005, Alan Stern wrote:
> On Mon, 30 May 2005, Guennadi Liakhovetski wrote: > > It sounds like there's some subtle incompatibility between the hub and > your host controller. Beats me what it could be. Insufficient power? Same when I connect a power supply to the hub. > Does it make any different if you unload the ehci-hcd driver so everything > runs only at full speed? Yes. Then it's ok. Another test I've performed - borrowed another 2.0 hub. First time I plugged it in I was able to transfer the whole mem-stick (128MB) with dd without an error! Then I discnnected it, reconnected the old one to verify - errors. Reconnected the borrowed one - errors... Have I killed it too now in this subtle inexplicable way?... All the same with a USB disk. A brief summary for David, in case he didn't follow this (added to CC): 2 PCs with VIA (UHCI companion) and ALi (OHCI) 2.0 cards, 1 high-speed hub, high-speed mem-stick, card-reader and disk, full-speed bluetooth. All work connected directly to PCs. Work connected to hub, connected to VIA. High-speed not work connected to the hub on ALi with EHCI, but work with OHCI only. Bluetooth works. I could borrow a USB-analyser, perhaps... If it would help. Thanks Guennadi --- Guennadi Liakhovetski ------------------------------------------------------- This SF.Net email is sponsored by Yahoo. Introducing Yahoo! Search Developer Network - Create apps using Yahoo! Search APIs Find out how you can build Yahoo! directly into your own Applications - visit http://developer.yahoo.net/?fr=offad-ysdn-ostg-q22005 _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
