Alan, I have run this up on a fresh Debian machine going to kernel 2.6.11 and all works perfectly. I am putting this down to a SuSE and possible VMWare issue.
thank you for your responses and guidance in all this. Jonathan *********** REPLY SEPARATOR *********** On 6/13/2005 at 11:28 Alan Stern wrote: >On Mon, 13 Jun 2005, jon wrote: > >> Thank you for your response. No other ISO devices attached. Same problem >> is replicable on both machines with the 2.6.11 kernel. >> >> Both work with 2.6.8 kernel. >> >> EHCI Host controller >> >> Linuc 2.6.11.4-21.7-default ehci_hcd >> >> /proc/bus/usb/devices is: >> >> T: Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 6 >> B: Alloc= 0/800 us ( 0%), #Int= 1, #Iso= 0 >> D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS= 8 #Cfgs= 1 >> P: Vendor=0000 ProdID=0000 Rev= 2.06 >> S: Manufacturer=Linux 2.6.11.4-21.7-default ehci_hcd >> S: Product=EHCI Host Controller >> S: SerialNumber=0000:00:1d.7 >> C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA >> I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub >> E: Ad=81(I) Atr=03(Int.) MxPS= 2 Ivl=256ms >> >> Device is on a powered hub >> >> >> >> T: Bus=04 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=480 MxCh= 4 >> D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1 >> P: Vendor=0409 ProdID=0058 Rev= 1.00 >> S: Manufacturer=NEC Corporation >> S: Product=USB2.0 Hub Controller >> C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA >> I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub >> E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms >> >> Actual device: >> >> >> T: Bus=04 Lev=02 Prnt=02 Port=02 Cnt=01 Dev#= 6 Spd=12 MxCh= 0 >> D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 >> P: Vendor=1275 ProdID=0081 Rev= 0.01 >> S: Manufacturer=XaxeroSkyEye >> S: Product=SkyEye USB-LX >> C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=200mA >> I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 >Driver=Xaxero_SkyEye >> E: Ad=88(I) Atr=01(Isoc) MxPS= 128 Ivl=1ms >> E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms >> >> >> It is the only connected USB perhipheral. > >I kind of expected something like this. The EHCI driver doesn't do a very >good job of handling ISO transfers that involve a speed change (i.e., >full-speed device connected through a high-speed hub). There's some >pretty hairy scheduling involved and the driver just can't handle it yet. > >So... > >Consider plugging your device directly into the computer, or else rmmod >ehci-hcd so that everything runs at full speed, or else replace your >external hub with a USB 1.1 hub. Any of these will allow you to bypass >that weak spot in the EHCI driver. > >Alan Stern > >PS: Your device includes an active ISO endpoint in its default altsetting, >which is a violation of the USB spec, section 5.6.3. Not that it really >matters very much, but it's worth pointing out... > > > >------------------------------------------------------- >This SF.Net email is sponsored by: NEC IT Guy Games. How far can you >shotput >a projector? How fast can you ride your desk chair down the office luge >track? >If you want to score the big prize, get to know the little guy. >Play to win an NEC 61" plasma display: http://www.necitguy.com/?r=20 >_______________________________________________ >[email protected] >To unsubscribe, use the last form field at: >https://lists.sourceforge.net/lists/listinfo/linux-usb-devel Jonathan Selby Director - Software Development Xaxero Marine Software Engineering Ltd at skype.com - xaxjon Satellite Phone (00) 88163 142 9922 Cell Argentina (54) 929 0160 2064 (00) 64 (0)9 412 7580 fax (00) 64 (0)9 412 7579 http://www.xaxero.com Software for extending your horizon.... ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id492&op=click _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
