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Groups > linux.debian.user > #238836

Re: what binds to port

From Brian <ad44@cityscape.co.uk>
Newsgroups linux.debian.user
Subject Re: what binds to port
Date 2021-08-16 21:00 +0200
Message-ID <CMQ02-2FO-11@gated-at.bofh.it> (permalink)
References (2 earlier) <CHBEl-1dG-1@gated-at.bofh.it> <CHGNI-4yI-5@gated-at.bofh.it> <CHIcN-5iz-1@gated-at.bofh.it> <CHIw9-5rU-1@gated-at.bofh.it> <CMP3Y-25D-7@gated-at.bofh.it>
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On Mon 16 Aug 2021 at 19:51:50 +0200, Nicolas George wrote:

> Brian (12021-08-02):
> > My thinking is that a USB printer uses libusb, just as a scanner does.
> > No kernel driver involved. The printer drivers are "internal" to CUPS.
> 
> The output of `/sbin/modinfo usblp` confirms there is a kernel driver
> for USB printers.
> 
> filename:       /lib/modules/5.10.0-8-amd64/kernel/drivers/usb/class/usblp.ko
> license:        GPL
> description:    USB Printer Device Class driver
> author:         Michael Gee, Pavel Machek, Vojtech Pavlik, Randy Dunlap, Pete Zaitcev, David Paschal

The existence of the usblp kernel module is not in doubt.

> It is entirely possible that both this and generic libusb access are
> supported.

The printing system detaches usblp when it is met.

-- 
Brian.

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Thread

Re: what binds to port "Thomas Schmitt" <scdbackup@gmx.net> - 2021-08-02 10:00 +0200
  Re: what binds to port mick crane <mick.crane@gmail.com> - 2021-08-02 10:20 +0200
  Re: what binds to port Nicolas George <george@nsup.org> - 2021-08-02 10:40 +0200
    Re: what binds to port Brian <ad44@cityscape.co.uk> - 2021-08-02 16:10 +0200
      Re: what binds to port Nicolas George <george@nsup.org> - 2021-08-02 17:40 +0200
        Re: what binds to port Brian <ad44@cityscape.co.uk> - 2021-08-02 18:00 +0200
          Re: what binds to port Nicolas George <george@nsup.org> - 2021-08-16 20:00 +0200
            Re: what binds to port Brian <ad44@cityscape.co.uk> - 2021-08-16 21:00 +0200
              Re: what binds to port Brian <ad44@cityscape.co.uk> - 2021-08-17 12:30 +0200
  Re: what binds to port Brian <ad44@cityscape.co.uk> - 2021-08-02 12:30 +0200
    Re: what binds to port "Thomas Schmitt" <scdbackup@gmx.net> - 2021-08-02 13:30 +0200
      Re: what binds to port Brian <ad44@cityscape.co.uk> - 2021-08-02 14:10 +0200

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