2016-02-22 7:15 GMT-07:00 Lennart Poettering <lenn...@poettering.net>: > On Sun, 21.02.16 15:26, Alex Henrie (alexhenri...@gmail.com) wrote: > >> Hi, >> >> I recently bought an MCS7715 USB-attached parallel port,[1] but there >> seem to be a couple of problems using it with Linux: >> >> 1. The lp, parport, and parport_pc kernel modules are not loaded when >> the device is plugged in. > > AFAIK parport_pc is the driver for old built-in parallel ports, it > it not used f you have a USB paralell port adapter.
OK. Still, at minimum lp needs to be loaded when the USB parallel port adapter is plugged in. >> 2. After manually loading the kernel modules, /dev/lp0 is not deleted >> when the device is unplugged. > > /dev/lp0 is also the old built-in parallel port. USB printers and > parallel ports show up as /dev/usb/lp0 or so.. When I plug in the device, /dev/lp0 appears; /dev/usb/lp0 does not. Furthermore, when I unplug and plug it back in, /dev/lp1 appears alongside /dev/lp0. A third time and I have /dev/lp0, /dev/lp1, and /dev/lp2. Are you sure that this is not a udev rules bug? If it isn't, where should I report it? -Alex _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
