Date: Tue, 18 Sep 2018 11:00:51 +0200 From: Gary Jennejohn <gljennjohn@gmail.com> To: shreyank amartya <shreyankfbsd@gmail.com> Cc: hps@selasky.org, freebsd-usb@freebsd.org Subject: Re: usbconfig lack of device or permission Message-ID: <20180918110051.4904ba9b@ernst.home> In-Reply-To: <CAD9jf8BdPk0gs_tiUah_7F-8m7L7hXo0SwzbQGgU2N9L9qJP%2BA@mail.gmail.com> References: <CAD9jf8DEXB-KO5s98jSH3Kj-N6jgyhgGvxFoWO-=iTsY-hqoVg@mail.gmail.com> <9a50285b-44a7-d8c2-3c42-ed282b0a408d@selasky.org> <CAD9jf8B58=LPW_RpvQiceSi66dPTwnQyYryPnqtwaqzHD2AMZw@mail.gmail.com> <0e799c90-ee0b-3b92-acda-8efee6eedc68@selasky.org> <CAD9jf8B27rKUqb2s9cqzWNEhnUZ2NpS2FSBgZQ6-7rF4NcBH6w@mail.gmail.com> <71f67595-45a1-9048-31b8-e32eb3bb74de@selasky.org> <CAD9jf8DV8MPR21o5R4aN08wcvyw%2BP-9C_Vwpe=0gZKLZt2%2BW8w@mail.gmail.com> <CAD9jf8BdPk0gs_tiUah_7F-8m7L7hXo0SwzbQGgU2N9L9qJP%2BA@mail.gmail.com>
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On Tue, 18 Sep 2018 12:14:29 +0530 shreyank amartya <shreyankfbsd@gmail.com> wrote: > Okay, so I'm able to use usbconfig once I chown /dev/usb/*. I don't > understand why adding my user to operator group is not enough instead of > chowning everything. > chown is the wrong approach. You need to chmod 660 all the entries under /dev/usb and add yourself to the operator group. This is why adding yourself to the operator group does not normally work: ls -l /dev/usb/* crw------- 1 root operator 0x37 Sep 18 08:43 /dev/usb/0.1.0 crw------- 1 root operator 0x7e Sep 18 08:43 /dev/usb/0.1.1 crw------- 1 root operator 0x8d Sep 18 08:43 /dev/usb/0.2.0 [etc] Only root has read/write permission. The chmod also gives the operator group read/write permission. > On Mon, Sep 17, 2018 at 4:51 PM shreyank amartya <shreyankfbsd@gmail.com> > wrote: > > > > ^^ this is not root :-) > > If I log in as root, usbconfig works. I want to make it work when i'm > > logged in as a normal user (amd). > > > > > Expected, unless you chown the packet filtering devices. > > Please elaborate on how I can i do this? > > > > On Mon, Sep 17, 2018 at 4:39 PM Hans Petter Selasky <hps@selasky.org> > > wrote: > > > >> On 9/17/18 12:25 PM, shreyank amartya wrote: > >> > amd@amd-sham:~ % whoami > >> > amd > >> ^^ this is not root :-) > >> > >> > > >> > amd@amd-sham:~ % usbdump -i usbus0 -s 255 -f 5 > >> > usbdump: Could not open BPF device: Permission denied > >> > >> Expected, unless you chown the packet filtering devices. > >> -- Gary Jennejohn
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