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Searched refs:PPS (Results 1 – 25 of 25) sorted by relevance

/linux/Documentation/driver-api/
H A Dpps.rst4 PPS - Pulse Per Second
25 system several PPS sources.
27 PPS means "pulse per second" and a PPS source is just a device which
31 A PPS source can be connected to a serial port (usually to the Data
38 GPS receiver as PPS source, to obtain a wallclock-time with
45 While implementing a PPS API as RFC 2783 defines and using an embedded
55 task for a PPS API. But this assumption does not work for a single
58 precondition for the use of a PPS API.
60 The problem can be simply solved if you consider that a PPS source is
64 for instance) is a PPS source too, and if not they should provide the
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H A Dptp.rst27 - Synchronization of the Linux system time via the PPS subsystem
/linux/drivers/pps/
H A DKconfig3 # PPS support configuration
6 menuconfig PPS config
7 tristate "PPS support"
9 PPS (Pulse Per Second) is a special pulse provided by some GPS
13 Some antennae's PPS signals are connected with the CD (Carrier
17 Some antennae's PPS signals are connected with some special host
23 if PPS
26 bool "PPS debugging messages"
28 Say Y here if you want the PPS support to produce a bunch of debug
30 problem with PPS support and want to see more of what is going on.
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/linux/drivers/pps/clients/
H A DKconfig3 # PPS clients configuration
6 comment "PPS clients support"
11 If you say yes here you get support for a PPS debugging client
12 which uses a kernel timer to generate the PPS signal.
18 tristate "PPS line discipline"
21 If you say yes here you get support for a PPS source connected
25 tristate "Parallel port PPS client"
28 If you say yes here you get support for a PPS source connected
32 tristate "PPS client using GPIO"
34 If you say yes here you get support for a PPS source using
/linux/drivers/pps/generators/
H A DKconfig3 # PPS generators configuration
7 tristate "PPS generators support"
9 PPS generators are special hardware which are able to produce PPS
18 tristate "Dummy PPS generator (Testing generator, use for debug)"
20 If you say yes here you get support for a PPS debugging generator
21 (which generates no PPS signal at all).
27 tristate "TIO PPS signal generator"
30 If you say yes here you get support for a PPS TIO signal generator
/linux/Documentation/ABI/testing/
H A Dsysfs-pps-gen7 directories that provide a unified interface to the PPS
16 PPS generator in the system. Each directory contain files to
17 manage and control its PPS generator.
25 PPS signal.
H A Dsysfs-pps7 the PPS sources.
14 PPS source into the system. Each directory will
15 contain files to manage and control its PPS source.
H A Dsysfs-ptp103 "1" means that the PPS is supported, while "0" means
140 PPS events to the Linux PPS subsystem. To enable PPS
H A Dsysfs-timecard22 PPS adjustments come from the PPS1 selector (default)
58 PHC output PPS is from the PHC clock
59 MAC output PPS is from the Miniature Atomic Clock
60 GNSS1 output PPS is from the first GNSS module
61 GNSS2 output PPS is from the second GNSS module
190 Description: This optional attribute links to the associated PPS device.
H A Dsysfs-pps-gen-tio6 Enable or disable PPS TIO generator output.
H A Dsysfs-class-usb_power_delivery231 Programmable Power Supply (PPS) Augmented PDO (APDO).
255 The PPS Power Limited bit indicates whether or not the source
/linux/samples/bpf/
H A Dxdp_sample_user.c60 #define PPS(pps) pps, "pkt/s" macro
674 str, PPS(pps), DROP(drop), ERR(err)); in stats_get_rx_cnt()
720 str, PPS(pps), DROP(drop), err, "bulk-avg"); in stats_get_cpumap_enqueue()
740 str, PPS(pps), DROP(drop), err, "bulk-avg"); in stats_get_cpumap_enqueue()
801 pps ? "kthread total" : "kthread", PPS(pps), DROP(drop), err, in stats_get_cpumap_kthread()
818 str, PPS(pps), DROP(drop), err, "sched"); in stats_get_cpumap_kthread()
1127 str, PPS(out->rx_cnt.pps), DROP(out->rx_cnt.drop), in stats_print()
/linux/drivers/pinctrl/
H A Dpinctrl-falcon.c112 MFP_FALCON(GPIO5, NTR, GPIO, PPS, NONE),
185 GRP_MUX("pps", PPS, pins_pps),
/linux/drivers/ptp/
H A DKconfig12 select PPS
263 synchronization. It also supports periodic output signal (e.g. PPS)
/linux/drivers/gpu/drm/ci/xfails/
H A Di915-glk-skips.txt79 # i915 0000:00:02.0: [drm] *ERROR* PPS state mismatch
226 # i915 0000:00:02.0: [drm] *ERROR* PPS state mismatch
/linux/Documentation/userspace-api/ioctl/
H A Dioctl-number.rst108 '1' 00-1F linux/timepps.h PPS kit from Ulrich Windl
109 … <ftp://ftp.de.kernel.org/pub/linux/daemons/ntp/PPS/>
/linux/arch/arm64/boot/dts/freescale/
H A Dimx8mn-venice-gw7902.dts840 MX8MN_IOMUXC_SAI5_RXD3_GPIO3_IO24 0x141 /* PPS */
H A Dimx8mm-venice-gw7902.dts903 MX8MM_IOMUXC_SAI5_RXD3_GPIO3_IO24 0x141 /* PPS */
/linux/Documentation/userspace-api/media/v4l/
H A Ddev-encoder.rst445 produced again, e.g. SPS and PPS for H.264/HEVC.
680 again, e.g. SPS and PPS for H.264/HEVC.
H A Ddev-stateless-decoder.rst375 that case. Also depending on the codec used, picture parameters (e.g. SPS/PPS
H A Dext-ctrls-codec.rst2673 Indicates whether to generate SPS and PPS at every IDR. Setting it to 0
2674 disables generating SPS and PPS at every IDR. Setting it to one enables
2675 generating SPS and PPS at every IDR.
/linux/Documentation/networking/device_drivers/ethernet/stmicro/
H A Dstmmac.rst69 - Pulse-Per-Second Output (PPS)
/linux/Documentation/networking/device_drivers/ethernet/intel/
H A Dice.rst935 1PPS) with only one of the functions supported.
/linux/
H A DCREDITS4348 D: Supports NTP on Linux. Added PPS code. Fixed bugs in adjtimex().
H A DMAINTAINERS21095 PPS SUPPORT