If you like BoxMatrix then please contribute Supportdata, Supportdata2, Firmware and/or Hardware (get in touch).
My metamonk@yahoo.com is not reachable by me since years. Please use hippie2000@webnmail.de instead.
Property:pcd (chipcmd)
| BoxMatrix >> Shell-Commands >> pcd (chipcmd) | @ BoxMatrix - IRC-Chat - Translate: de es fr it nl pl |
| News | Selectors | Models | Accessories | Components | Environment | Config | Commands | System | Webif | Software | Develop | Lexicon | Community | Project | Media |
| Startup-Scr | Hotplug-Scr | BusyBox-Cmds | Bash-Cmds | AVM-Cmds | Chipset-Cmds | Linux-Cmds | Shared-Libs | Kernel-Mods | Research |
 |
Name-Collision - multiple objects in this wiki use the name pcd!
|
Chipset-Command
| Command: | pcd (chipcmd) - type Exec | Wiki | Freetz | IPPF | whmf | AVM | Web |
| Location: | Shell-Commands >> Chipset-Commands - Origin: Puma | ||||||
| Path: | Release: /usr/sbin Lab+Rel: /usr/sbin | ||||||
| Properties: | Size: 38.1k - 285k - Firmware: 4.85 - 7.62 | ||||||
| Function: | Process Control Daemon, a supervisor alike service manager daemon. | ||||||
Goto: Rules - API - Examples - Dependencies - Model-Matrix - Symbols - SMW-Browser
Details
pcd is a Process Control Daemon, a supervisor alike service manager daemon designed to speed up system boot time.
It is used on all cable models, always running on the ARM side which contains the DOCSIS stack.
Excerpt from the PCD homepage:
PCD (Process Control Daemon), is an open source, light-weight, system level process manager for Embedded Linux based products (Consumer electronics, network devices, and more). With PCD in control, it is guaranteed that the system’s boot up time will be reduced, and its reliability, availability and robustness will be enhanced.
Fw 7.29 help:
Usage: pcd [options] Options: -f FILE, --file=FILE Specify PCD rules file. -p, --print Print parsed configuration. -v, --verbose Verbose display. -t tick, --timer-tick=tick Setup timer ticks in ms (default 200ms). -e FILE, --errlog=FILE Specify error log file (in nvram). -h, --help Print this message and exit.
Rules
pcd is configured by rule files also called scripts, *.pcd text files located in /etc/scripts.
Their purpose is similar to the *.sercive files of supervisor., but they are more advanced
Excerpt from the PCD Scripts documentation:
The PCD script, or Rule file is the actual input to the PCD. The script file is a human readable text file, and it is composed of “Rule Blocks”. Each Rule block defines which process to start, when to start it, in which priority to run it, what recovery action to take when it fails, and more. A rule block is associated with a single process. The Rule Blocks have a uniform structure and composed of a set of commands, according to the following syntax, where lines that start with a # mark are remark lines which the PCD ignores.
TODO: List all PCD rules here.
API
pcd does not have a specific control command like svctl for supervisor but provides an API.
This API can be compiled into an executable and provides functions similar to svctl.
Excerpt from the PCD API documentation:
The PCD provides additional API for every application in order to request services from the PCD, or retrieve information. The services that the PCD provides encapsulate the actual process name and id (pid might vary). The controlling application only needs to know the rule name in order to request a service.
6490 fw 7.29 PCD API usage:
- liball_docsis.so
- libpacm_cfm.so
- libpacm_dhcp_initiator.so
- libticc.so
- libusnmp.so
- bpi_auth
- bpi_sa_map
- bpi_tek
- cm_status
- dispatcher
- dmg_provisioning
- docsis_init_once
- docsis_mac_driver
- docsis_mac_manager
- downstream_manager
- edocsis
- energy_manager_app
- eventmgr_cm
- ext_switch_init
- gim
- gptimer
- hal_cmd_mbox
- hal_event_mbox
- hal_tuner_mgr
- l2switch_init
- logger
- mlx
- mptint
- nvread
- pacm_doim
- pacm_event_mgr
- pacm_mta_control
- pacm_security
- pacm_snmp_agent
- pacm_vendor_app
- pcd
- psm
- qos_dsx_sm
- snmp_agent_cm
- sw_dl
- sync_app_np_reboot
- upstream_manager
- upstream_manager_1q
Examples
Simplified from pacm_setup.sh fw 7.29:
killall watchdog_rt pcd -f /etc/scripts/vsdk.pcd -p -t 20 -e /nvram/pcd_error_log.txt &
pcd will reboot the system if it is terminated unless CONFIG_DOCSIS_PCD_NO_REBOOT is y which adds -d option.
Dependencies
Daily updated index of all dependencies of this command. Last update: 2024-04-19 07:32 GMT.
A * in the Mod column marks info from Supportdata-Probes, which will always stay incomplete.
| Relation | Typ | Object | Mod | Firmware | Info | Origin |
|---|---|---|---|---|---|---|
| Runs as | proc | pcd (process) | 11* | 5.24 - 7.61 | Process Control Daemon, a supervisor alike service manager daemon. | Puma |
| Depends on | lib | libc.so | 11 | 4.85 - 7.62 | Standard C library | Linux |
| Depends on | lib | libcap.so | 4 | 7.14 - 7.62 | POSIX 1003.1e capabilities library | Linux |
| Depends on | lib | libdl.so | 7 | 4.85 - 7.57 | Dynamic linking library | Linux |
| Depends on | lib | libgcc_s.so | 4 | 7.04 - 7.62 | GCC low-level runtime library | Linux |
| Depends on | lib | libslibc.so | 4 | 7.14 - 7.62 | Bounds-checking C functions for use with the GNU C library | Linux |
| Depends on | lib | libticc.so | 11 | 4.85 - 7.62 | TODO | Linux |
| 7 dependencies for this command | ||||||
Model-Matrix
Daily updated index of the presence, path and size of this command for each model. Last update: 2024-04-20 05:16 GMT.
Showing all models using this command. Click any column header (click-wait-click) to sort the list by the respective data.
The (main/scrpn/boot/arm/prx/atom) label in the Model column shows which CPU is meant for models with multiple Linux instances.
Note that this list is merged from Firmware-Probes of all known AVM firmware for a model, including Recovery.exe and Labor-Files.
| Model | Firmware | Path | Size |
|---|---|---|---|
| FRITZ!Box 6320 Cable v1 | 6.03 - 6.04 | /usr/sbin | 54.8k - 54.9k |
| FRITZ!Box 6320 Cable v2 | 6.21 | /usr/sbin | 54.9k |
| FRITZ!Box 6340 Cable | 5.24 | /usr/sbin | 50.4k |
| FRITZ!Box 6360 Cable | 4.85 - 6.51 | /usr/sbin | 50.4k - 54.9k |
| FRITZ!Box 6430 Cable (arm) | 6.84 - 7.29 | /usr/sbin | 38.1k - 42.4k |
| FRITZ!Box 6490 Cable (arm) | 6.20 - 7.51 | /usr/sbin | 38.1k - 54.9k |
| FRITZ!Box 6590 Cable (arm) | 6.83 - 7.57 | /usr/sbin | 38.1k - 42.4k |
| FRITZ!Box 6591 Cable (arm) | 7.12 - 7.57 | /usr/sbin | 180k - 252k |
| FRITZ!Box 6660 Cable (arm) | 7.14 - 7.57 | /usr/sbin | 242k - 252k |
| FRITZ!Box 6670 Cable (arm) | 7.61 - 7.62 | /usr/sbin | 58.2k - 285k |
| FRITZ!Box 6690 Cable (arm) | 7.28 - 7.57 | /usr/sbin | 242k - 252k |
| 11 models use this command | |||
Symbols
Daily updated index of all symbols of this command. Last update: 2024-04-19 07:32 GMT.
| Firmware | Symbol |
|---|---|
| 0 symbols for this command | |
