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/Linux-v5.15/drivers/pps/
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.
[all …]
/Linux-v5.15/Documentation/driver-api/
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
[all …]
Dptp.rst27 - Synchronization of the Linux system time via the PPS subsystem
/Linux-v5.15/drivers/pps/clients/
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-v5.15/drivers/pps/generators/
DKconfig3 # PPS generators configuration
6 comment "PPS generators support"
9 tristate "Parallel port PPS signal generator"
12 If you say yes here you get support for a PPS signal generator which
13 utilizes STROBE pin of a parallel port to send PPS signals. It uses
/Linux-v5.15/Documentation/devicetree/bindings/pps/
Dpps-gpio.txt1 Device-Tree Bindings for a PPS Signal on GPIO
3 These properties describe a PPS (pulse-per-second) signal connected to
8 - gpios: one PPS GPIO in the format described by ../gpio/gpio.txt
10 Additional required properties for the PPS ECHO functionality:
11 - echo-gpios: one PPS ECHO GPIO in the format described by ../gpio/gpio.txt
/Linux-v5.15/Documentation/ABI/testing/
Dsysfs-pps7 the PPS sources.
14 PPS source into the system. Each directory will
15 contain files to manage and control its PPS source.
Dsysfs-ptp103 "1" means that the PPS is supported, while "0" means
140 PPS events to the Linux PPS subsystem. To enable PPS
/Linux-v5.15/Documentation/devicetree/bindings/ptp/
Dptp-qoriq.txt48 Pulse Per Second (PPS) signal, since this will be offered to the PPS
/Linux-v5.15/Documentation/devicetree/bindings/gnss/
Dmediatek.txt23 - timepulse-gpios : Time pulse GPIO (pin name: PPS1, 1PPS)
Dsirfstar.txt32 - timepulse-gpios : Time pulse GPIO (pin name: 1PPS, TM)
/Linux-v5.15/samples/bpf/
Dxdp_sample_user.c61 #define PPS(pps) pps, "pkt/s" macro
672 str, PPS(pps), DROP(drop), ERR(err)); in stats_get_rx_cnt()
718 str, PPS(pps), DROP(drop), err, "bulk-avg"); in stats_get_cpumap_enqueue()
738 str, PPS(pps), DROP(drop), err, "bulk-avg"); in stats_get_cpumap_enqueue()
799 pps ? "kthread total" : "kthread", PPS(pps), DROP(drop), err, in stats_get_cpumap_kthread()
816 str, PPS(pps), DROP(drop), err, "sched"); in stats_get_cpumap_kthread()
1125 str, PPS(out->rx_cnt.pps), DROP(out->rx_cnt.drop), in stats_print()
/Linux-v5.15/drivers/pinctrl/
Dpinctrl-falcon.c112 MFP_FALCON(GPIO5, NTR, GPIO, PPS, NONE),
185 GRP_MUX("pps", PPS, pins_pps),
/Linux-v5.15/drivers/ptp/
DKconfig12 select PPS
/Linux-v5.15/Documentation/userspace-api/ioctl/
Dioctl-number.rst98 '1' 00-1F linux/timepps.h PPS kit from Ulrich Windl
99 … <ftp://ftp.de.kernel.org/pub/linux/daemons/ntp/PPS/>
/Linux-v5.15/Documentation/userspace-api/media/v4l/
Ddev-decoder.rst116 PPS
125 SPS/PPS/IDR sequence (H.264/HEVC); a resume point is required to start decode
836 over a change of SPS/PPS. Even though the target frame could be a
837 keyframe, the stale SPS/PPS inside decoder state would lead to undefined
Ddev-encoder.rst444 produced again, e.g. SPS and PPS for H.264/HEVC.
679 again, e.g. SPS and PPS for H.264/HEVC.
Dext-ctrls-codec.rst2636 Indicates whether to generate SPS and PPS at every IDR. Setting it to 0
2637 disables generating SPS and PPS at every IDR. Setting it to one enables
2638 generating SPS and PPS at every IDR.
2925 the PPS
Ddev-stateless-decoder.rst374 that case. Also depending on the codec used, picture parameters (e.g. SPS/PPS
/Linux-v5.15/arch/arm64/boot/dts/freescale/
Dimx8mn-venice-gw7902.dts730 MX8MN_IOMUXC_SAI5_RXD3_GPIO3_IO24 0x141 /* PPS */
Dimx8mm-venice-gw7902.dts748 MX8MM_IOMUXC_SAI5_RXD3_GPIO3_IO24 0x141 /* PPS */
/Linux-v5.15/Documentation/networking/device_drivers/ethernet/stmicro/
Dstmmac.rst69 - Pulse-Per-Second Output (PPS)
/Linux-v5.15/
DCREDITS4055 D: Supports NTP on Linux. Added PPS code. Fixed bugs in adjtimex().
DMAINTAINERS15062 PPS SUPPORT