Hi, making it dynamic would be great, who knows how many crazy guys like me are are out there :).. while googleing about it I found a couple of guys with the same problem.. they had even more devices connected, about 107 I think.. In the meanwhile, do you see a workaround for this? I was just about to recover some old desktops from the trash to plug and share the devices from them. thanks for the prompt response On Thu, Jun 7, 2012 at 11:07 PM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > On Thu, Jun 07, 2012 at 04:50:25PM -0300, Italo Migotto wrote: >> Hi, >> >> right now I have approximately 50 USB devices plugged into my server, >> and together they create more than 250 serial interfaces in the system >> (up to 5 /dev/ttyUSBXX each), the problem is that I need to plug some >> more and it seems I“ve reached the limit of 255 interfaces, so my >> question is: >> >> is there a way to increase that limit? Or, if there isn“t, can I >> remove the unused interfaces somehow? I only access one of these 5 for >> each device, not really sure if the other 4 are necessary. > > Wow, you are the first person that I know of, in the past 14 years of > the usb serial code, that has hit this max number, nice job :) > > I can increment the number to be larger, but what is the correct number > to move to? > > I guess I can just make it dynamic, which should give you 4k minors (I > think, I can't recall the minor max number at the moment, it probably is > bigger.) If anyone else wants to send in patches doing this before I > get a chance to (which might be a while), I'd be glad to accept them. > > thanks, > > greg k-h -- 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
