On Tue, Oct 20, 2015 at 05:20:23PM +0200, Erwin Van de Velde wrote: > Hi all, > > Due to some hardware issues, I have to reset USB modems and a USB to > serial converter on some of my servers. What I noticed is that > /dev/ttyUSBXX devices are never reused: ttyUSB1 becomes ttyUSB3 e.g. > and so on. This looks fine, but we have to do it rather often, so > after a while we reach ttyUSB511 after which the system refuses to > create new ttyUSB devices (I guess this is a hard limit in the kernel > code). What do you mean by reset here? Do you disconnect and plug the device back in? > This issue seems unsolvable with anything less than a reboot. Is there > a better way? Why are ttyUSB device numbers of devices that have > already disappeared not reused? > > Tested on Debian 8 with 3.16 kernel. Please try a more recent kernel (e.g. 4.2). 3.16 is way too old and not supported by the community. Thanks, Johan -- 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
