Greetings all; I am having a heck of a time with my usb tree. The number of devices that I have (about 18 when all are plugged in) exceed the available ports (10) on my motherboard. So I've been playing with hubs. If I put a 4 port powered hub on a mobo socket, and plug in the more distant stuff, it works fairly well, but does require that I use 2 of the long extension cables to reach some stuff in the basement, a printer, and a usb-ser adapter. However, neither of my 7 port hubs (one an Alps, one a Staples, both usb2.0 rated) can be substituted in this same location as the same extension cable (with a 1 port hub for a booster built in) then returns either an error -32, or an error -71 as seen in a tail of the log. I get the impression that part of this error is because the timeouts in the usb drivers do not allow enough time for a distant hub, say 3 effective repeaters or more out on a branch, to respond to the enumeration query. FWIW, I have looked through the usb docs in the kernel tree, currently running 2.6.35.7, without encountering a list of error codes vs ERRNO strings, so I have NDI what the -32 or -71 errors are actually telling me. Except for the 4 and 7 port hubs, everything else including the extension cables are FTDI based, pl2303 stuff is verboten. Is there a single location in the usb driver(s) where this allowable delay can be increased? Or perhaps multiplied by the number of repeaters in that particular branch? Thank you. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Is he the MAGIC INCA carrying a FROG on his shoulders?? Is the FROG his GUIDELIGHT?? It is curious that a DOG runs already on the ESCALATOR ... -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
