raspinfo: Fix camera listing and vcgencmd errors on current images

[YORROY123]

raspinfo prints Command not registered twice on a Pi 5, and on current images it never lists cameras on any model.

• Camera section: libcamera-hello was renamed rpicam-hello, and trixie images ship only the new name. raspinfo therefore always fell back to vcgencmd get_camera, which Pi 5 firmware does not register. It now tries rpicam-hello --list first and keeps libcamera-hello --list for older images. It calls get_camera only if the firmware lists it.
• Videocore section: mem_reloc_stats is called only when vcgencmd commands lists it. As noted in vcgencmd mem_reloc_status: "Command not registered" #137, Pi 5 has no relocatable heap.

A small vcgencmd_has() helper checks vcgencmd commands and matches whole words, so get does not match get_config.

Tested on a Pi 5 Rev 1.1, trixie, raspinfo 20260626-1:

• Command not registered: 2 -> 0.
• The camera section shows No cameras available! (no camera attached).
• The rest of the output is identical apart from counters and timestamps.
• sh -n passes.

Fixes #39
Fixes #137

[popcornmix]

Thanks looks fine.

When testing I noticed the regex on the EEPROM section missed pi500 and cm5.
Perhaps you could add that fix? One suggestion that may be more robust is to use
grep -q bcm2712 /proc/device-tree/compatible

[YORROY123]

Thanks for testing. Added in b8dd07a: the EEPROM section now also runs when /proc/device-tree/compatible contains bcm2712, as you suggested. I kept the revision-code regex so the Pi 4 family (BCM2711) still matches.

Checked on the Pi 5 (EEPROM section shown as before), and with fake cpuinfo/compatible files for the other cases:

Board	Revision	Before	After
CM5	d04180	skipped	shown
Pi 500	d04190	skipped	shown
Pi 5	d04170	shown	shown
Pi 4	c03114	shown	shown
Pi 3B+	a020d3	skipped	skipped

[YORROY123]

Also confirmed on real CM5 hardware (Compute Module 5 Rev 1.0, revision c04180, packaged raspinfo 20251120-1):

Version	EEPROM section	Exit code
packaged /usr/bin/raspinfo	missing	0
b8dd07a	present	0

With b8dd07a the section shows the rpi-eeprom-update output as expected:

EEPROM
------

BOOTLOADER: up to date
   CURRENT: 2026-05-11 11:20:02 UTC (1778498402)
    LATEST: 2025-11-05 17:37:18 UTC (1762364238)
   RELEASE: default (/usr/lib/firmware/raspberrypi/bootloader-2712/default)

[popcornmix]

I'd drop the regex and use bcm2711 in compatible for Pi4 family (and bcm2712 for pi5).

[YORROY123]

Done in 8b71871: the regex is gone, and the EEPROM section now runs when compatible contains bcm2711 or bcm2712.

Checked on the Pi 5 (section shown, sh -n clean), and with fake compatible files: CM5, Pi 500, Pi 5, Pi 4, Pi 400 and CM4 show the section; Pi 3B+ and Pi Zero W skip it.

[popcornmix]

Thanks!