On Sun, Nov 14, 2004 at 10:18:13PM +0000, James Wilkinson wrote: James, I've got it to work! But to be complete I answered your questions anyway... > USB port <-- ext. cable --><-- ext. cable --><--camera cable--><-- camera --> It is this last configuration. > > How complex are those cables? How likely is it that there are chips in > them? The cables are Eminent EM 1014 booster cables (5 meters long). > > What happens if you take them out of the equation? The camera works fine when it is connected directly (with it's own cable) to the PC > > > Nov 12 23:32:55 amdrvk kernel: usb 2-2.2: can't connect bus-powered hub to this port > > This message comes from drivers/usb/core/hub.c. Above it is the comment: > /* consecutive bus-powered hubs aren't reliable; they can > * violate the voltage drop budget. if the new child has > * a "powered" LED, users should notice we didn't enable it > * (without reading syslog), even without per-port LEDs > * on the parent. > */ > > The kernel may have become more fussy about proper cabling because the > alternative may well be lost data. I installed the kernel sources and looked for the above code. I could not find it so I decided to build a new kernel. After that the camera worked!! Only kudzu doesn't work (the PC seems to 'hang') but that is something I may be able to solve later. Thanks for pointing me in the right direction and giving me the last push to go into the 'hassle' of building a kernel. Mark
