Im Verzeichnis /opt/vc/bin findest du das Dienstprogramm vcgencmd, das es erlaubt, den Systemzustand zu untersuchen.
Im Verzeichnis /usr/bin steht ein Verweis auf das Programm vcgencmd. Der Verweis ermöglicht den Aufruf des Programms aus jedem Verzeichnis.
Eine Übersicht über Kommandos des Hilfsprogramms steht hier: https://elinux.org/RPI_vcgencmd_usage
pi@raspberrypi:~ $ vcgencmd commands commands="vcos, ap_output_control, ap_output_post_processing, vchi_test_init, vchi_test_exit, vctest_memmap, vctest_start, vctest_stop, vctest_set, vctest_get, pm_set_policy, pm_get_status, pm_show_stats, pm_start_logging, pm_stop_logging, version, commands, set_vll_dir, set_backlight, set_logging, get_lcd_info, arbiter, cache_flush, otp_dump, test_result, codec_enabled, get_camera, get_mem, measure_clock, measure_volts, scaling_kernel, scaling_sharpness, get_hvs_asserts, get_throttled, measure_temp, get_config, hdmi_ntsc_freqs, hdmi_adjust_clock, hdmi_status_show, hvs_update_fields, pwm_speedup, force_audio, hdmi_stream_channels, hdmi_channel_map, display_power, read_ring_osc, memtest, dispmanx_list, get_rsts, schmoo, render_bar, disk_notify, inuse_notify, sus_suspend, sus_status, sus_is_enabled, sus_stop_test_thread, egl_platform_switch, mem_validate, mem_oom, mem_reloc_stats, hdmi_cvt, hdmi_timings, file" pi@raspberrypi:~ $ vcgencmd display_power display_power=1 pi@raspberrypi:~ $ vcgencmd measure_volts volt=1.2000V pi@raspberrypi:~ $ vcgencmd measure_temp temp=36.9'C pi@raspberrypi:~ $ vcgencmd version Jul 3 2017 14:16:43 Copyright (c) 2012 Broadcom version 4139c62f14cafdb7d918a3eaa0dbd68cf434e0d8 (tainted) (release)
vcgencmd commands
vcgencmd measure_temp
vcgencmd measure_volts core
vcgencmd measure_clock arm
vcgencmd get_mem gpu
vcgencmd get_mem arm
Im Verzeichnis /opt/vc/include/interface/vmcs_host stehen include-Dateien, die die Verwendung von Funktionen von vcgencmd in C-Programmen ermöglichen.
work@raspberrypi:~ $ vcgencmd commands commands="commands, set_logging, bootloader_config, bootloader_version, cache_flush, codec_enabled, get_mem, get_rsts, measure_clock, measure_temp, measure_volts, get_hvs_asserts, get_config, get_throttled, pmicrd, pmicwr, read_ring_osc, version, readmr, otp_dump, pmic_read_adc, power_monitor" work@raspberrypi:~ $ vcgencmd version 2025/05/08 15:13:17 Copyright (c) 2012 Broadcom version 69471177 (release) (embedded) work@raspberrypi:~ $ vcgencmd bootloader_version 2025/05/08 15:13:17 version 69471177ba7e4cb7597cb2496f2a0b23f19c1113 (release) timestamp 1746713597 update-time 1759244008 capabilities 0x0000007f work@raspberrypi:~ $ vcgencmd measure_volts volt=0.7200V Das Programm steht in /usr/bin. Dort stehen auch vcmailbox und vclog man vcgencmd gibt eine ausführlichere Anleitung, allerdings für die Version, die mit Buster ausgeliefert wird. siehe auch: https://www.raspberrypi.com/documentation/computers/os.html#vcgencmd man vcmailbox man raspiotp man raspirev https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#raspberry-pi-revision-codes