Hi, > On Sat, 28 Aug 2010, Artem Makhutov wrote: > >> It is much harder to reproduce the problem when no hubs are in use. >> What is the big deal in not using hubs? >> > There are several reasons. First, not having the extra hardware > removes a whole class of possible causes of errors. The problem is much easier to reproduce by using hubs. > Second, not having > the hubs makes the logs easier to follow since they won't contain a lot > of uninteresting extra entries. Ok. > Third, without the hubs you won't be able to connect as many modems, > which again makes the logs easier to follow. Thats not true :) I can connect the same amount of modems without hubs :) Unfortunately the problem can only be triggered by connecting a lot of modems. > Fourth, without the high-speed hubs the modems will have to > connect to a full-speed USB-1.1 controller instead of a high-speed > USB-2.0 controller, removing yet another possible source of errors and > complexity. > How do you know that they will connect to USB-1.1 instead of USB-2.0? I was believing that the modems are USB-2.0 devices? How can I find out if they are USB-1.1 or 2.0? Thanks, Artem -- 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
