Lines Matching refs:source

25 PPS means "pulse per second" and a PPS source is just a device which
29 A PPS source can be connected to a serial port (usually to the Data
36 GPS receiver as PPS source, to obtain a wallclock-time with
50 This implies that the source has a /dev/... entry. This assumption is
58 The problem can be simply solved if you consider that a PPS source is
59 not always connected with a GPS data source.
61 So your programs should check if the GPS data source (the serial port
62 for instance) is a PPS source too, and if not they should provide the
63 possibility to open another device as PPS source.
87 To register a PPS source into the kernel you should define a struct
103     source = pps_register_source(&pps_ktimer_info,
111 PPS source, "default_params" tells the system what the initial default
116 Once you have registered a new PPS source into the system you can
120     pps_event(source, &ts, PPS_CAPTUREASSERT, ptr)
154 * echo: reports if the PPS source has an echo function or not;
158 * name: reports the PPS source's name;
160 * path: reports the PPS source's device path, that is the device the
161   PPS source is connected to (if it exists).
179    trying PPS source "/dev/pps1"
180    found PPS source "/dev/pps1"
181    ok, found 1 source(s), now start fetching data...
182    source 0 - assert 1186592699.388832443, sequence: 364 - clear  0.000000000, sequence: 0
183    source 0 - assert 1186592700.388931295, sequence: 365 - clear  0.000000000, sequence: 0
184    source 0 - assert 1186592701.389032765, sequence: 366 - clear  0.000000000, sequence: 0