NAME

       cansniffer - manual page for cansniffer 2023.03-1

SYNOPSIS

       cansniffer [can-interface]

DESCRIPTION

       cansniffer - volatile CAN content visualizer.

OPTIONS

       -q     (quiet - all IDs deactivated)

       -r <name>
              (read sniffset.name from file)

       -e     (fix extended frame format output - no auto detect)

       -b     (start with binary mode)

       -8     (start with binary mode - for EFF on 80 chars)

       -B     (start with binary mode with gap - exceeds 80 chars!)

       -c     (color changes)

       -f <mode>
              (CAN FD mode: 0 = OFF, 1 = ON, 2 = auto detect, default: 2)

       -t <time>
              (timeout for ID display [x10ms] default: 500, 0 = OFF)

       -h <time>
              (hold marker on changes [x10ms] default: 100)

       -l <time>
              (loop time (display) [x10ms] default: 20)

       -?     (print this help text)

       Use interface name 'any' to receive from all can-interfaces.

   commands that can be entered at runtime:
       q<ENTER>
              - quit

       b<ENTER>
              - toggle binary / HEX-ASCII output

       8<ENTER>
              - toggle binary / HEX-ASCII output (small for EFF on 80 chars)

       B<ENTER>
              - toggle binary with gap / HEX-ASCII output (exceeds 80 chars!)

       c<ENTER>
              - toggle color mode

       @<ENTER>
              - toggle ASCII output (disabled for CAN FD by default)

       <SPACE><ENTER>
              - force a clear screen

       #<ENTER>
              - notch currently marked/changed bits (can be used repeatedly)

       *<ENTER>
              - clear notched marked

       rMYNAME<ENTER>
              - read settings file (filter/notch)

       wMYNAME<ENTER>
              - write settings file (filter/notch)

       a<ENTER>
              - enable 'a'll SFF CAN-IDs to sniff

       n<ENTER>
              - enable 'n'one SFF CAN-IDs to sniff

       A<ENTER>
              - enable 'A'll EFF CAN-IDs to sniff

       N<ENTER>
              - enable 'N'one EFF CAN-IDs to sniff

       +FILTER<ENTER>  - add CAN-IDs to sniff

       -FILTER<ENTER>  - remove CAN-IDs to sniff

       FILTER can be a single CAN-ID or a CAN-ID/Bitmask:

              single SFF 11 bit IDs:

       +1F5<ENTER>               - add SFF CAN-ID 0x1F5

       -42E<ENTER>               - remove SFF CAN-ID 0x42E

              single EFF 29 bit IDs:

       +18FEDF55<ENTER>          - add EFF CAN-ID 0x18FEDF55

       -00000090<ENTER>          - remove EFF CAN-ID 0x00000090

              CAN-ID/Bitmask SFF:

       -42E7FF<ENTER>            - remove SFF CAN-ID 0x42E (using Bitmask)

       -500700<ENTER>            - remove SFF CAN-IDs 0x500 - 0x5FF

       +400600<ENTER>            - add SFF CAN-IDs 0x400 - 0x5FF

       +000000<ENTER>            - add all SFF CAN-IDs

       -000000<ENTER>            - remove all SFF CAN-IDs

              CAN-ID/Bitmask EFF:

       -0000000000000000<ENTER>  - remove all EFF CAN-IDs

       +12345678000000FF<ENTER>  - add EFF CAN IDs xxxxxx78

       +0000000000000000<ENTER>  - add all EFF CAN-IDs

       if (id & filter) == (sniff-id & filter) the action (+/-) is performed, which is quite easy
       when the filter is 000 resp. 00000000 for EFF.