Package: ntpsec Version: 1.2.2+dfsg1-1+deb12u1 Severity: normal Dear Maintainer,
to be able to use my USB-attached reference clock ("GUDE Expert mouseCLOCK USB v2.0"), I had to edit /etc/apparmor.d/usb.sbin.ntpd (see attached patch). Additionally, I added an udev rule in /etc/udev/rules.d/persistent-refclock.rules with these contents: KERNEL=="ttyUSB*", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="e88a", SYMLINK+="refclock-%m" MODE="644" But the udev rule is probably outside the scope of the ntpsec package. After these changes, I can use the device with the following configuration in ntp.conf: refclock generic subtype 19 Regards Carsten
--- usr.sbin.ntpd-backup 2023-07-29 22:52:36.000000000 +0200 +++ usr.sbin.ntpd 2024-06-02 14:30:27.280164420 +0200 @@ -38,6 +38,8 @@ @{NTPD_DEVICE} rw, # pps devices are almost exclusively used with NTP /dev/pps[0-9]* rw, + /dev/refclock-[0-9]* rw, + /dev/ttyUSB[0-9]* rw, /{,s}bin/ r, /usr/{,s}bin/ r,