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| author | Eric S. Raymond <esr@thyrsus.com> | 2012-02-26 16:25:15 -0500 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2012-02-26 16:25:15 -0500 |
| commit | 31ed6f62a334bb081312187297788dbcc8043dba (patch) | |
| tree | b47f5420e43c4fce122b7be10e289c1b0e155d20 /gpsctl.xml | |
| parent | 6562a313dd288cd3b308f2c7b648b5c0ddbb788d (diff) | |
| download | gpsd-31ed6f62a334bb081312187297788dbcc8043dba.tar.gz | |
Document how gpsctl -x sends SiRF strings.
Diffstat (limited to 'gpsctl.xml')
| -rw-r--r-- | gpsctl.xml | 10 |
1 files changed, 6 insertions, 4 deletions
@@ -143,10 +143,12 @@ a Navcom NCT or Trimble TSIP device, the first byte is interpreted as the command ID and the rest as payload. When sending to a Zodiac device, the first two bytes are used as a message ID of type little-endian short, and the remainder as payload in byte pairs -interpreted as little-endian short. C-style backslash escapes in the -string, notably \xNN for hex, will be interpreted; additionally, \e -will be replaced with ESC. This switch implies -<option>-f</option>.</para> +interpreted as little-endian short. For all other supported binary +GPSes (notably including SiRF) the string is taken as the entire +message payload and wrapped with appropriate header, trailer and +checksum bytes. C-style backslash escapes in the string, notably \xNN +for hex, will be interpreted; additionally, \e will be replaced with +ESC. This switch implies <option>-f</option>.</para> </listitem> </varlistentry> |