Hi,

after updating brickd to 2.4.6 it does not connect to the hat anymore on a Raspberry Pi 4 Model B Rev 1.5. (Hat firmware did not show any available updates before). I checked that SPI is enabled.

2024-07-27 13:21:51.398294 <I> <main_linux.c:385> Brick Daemon 2.4.6 started (architecture: arm64, pid: 2212, daemonized: 1)
2024-07-27 13:21:51.398344 <I> <main_linux.c:391> Running on Linux system (sysname: Linux, release: 6.1.21-v8+, version: #1642 SMP PREEMPT Mon Apr  3 17:24:16 BST 2023, machine: aarch64)
2024-07-27 13:21:51.409885 <I> <bricklet.c:274> Found supported HAT product_id 0x084e in device tree, using default HAT Brick config
2024-07-27 13:21:51.409905 <I> <bricklet.c:315> Found Bricklet port A (spidev: /dev/spidev0.0, driver: gpio, name: GPIO23, num: 23)
2024-07-27 13:21:51.409988 <I> <bricklet_stack_linux.c:87> Using spidev backend for Bricklets, because Raspberry Pi without BCM2835 detected
2024-07-27 13:21:51.411273 <I> <bricklet.c:315> Found Bricklet port B (spidev: /dev/spidev0.0, driver: gpio, name: GPIO22, num: 22)
2024-07-27 13:21:51.412419 <I> <bricklet.c:315> Found Bricklet port C (spidev: /dev/spidev0.0, driver: gpio, name: GPIO25, num: 25)
2024-07-27 13:21:51.413494 <I> <bricklet.c:315> Found Bricklet port D (spidev: /dev/spidev0.0, driver: gpio, name: GPIO26, num: 26)
2024-07-27 13:21:51.414650 <I> <bricklet.c:315> Found Bricklet port E (spidev: /dev/spidev0.0, driver: gpio, name: GPIO27, num: 27)
2024-07-27 13:21:51.415818 <I> <bricklet.c:315> Found Bricklet port F (spidev: /dev/spidev0.0, driver: gpio, name: GPIO24, num: 24)
2024-07-27 13:21:51.416855 <I> <bricklet.c:315> Found Bricklet port G (spidev: /dev/spidev0.0, driver: gpio, name: GPIO7, num: 7)
2024-07-27 13:21:51.417584 <E> <bricklet_stack_linux_spidev.c:263> Could not find line GPIO7
2024-07-27 13:21:52.417727 <I> <main_linux.c:579> Brick Daemon 2.4.6 stopped

Any ideas on what went wrong? Also downgrading to brickd 2.4.3 seems not available with aptget. There it did connect.

Regards
Amely

This is a known problem that will be fixed with 2.4.7.

Were you able to downgrade to 2.4.3? If not, you can download older versions from here.

See the thread Brick Daemon 2.4.6 not working for

• a discussion of the problem
• instructions for downgrading to brickd 2.4.5 (fix)
• a preview of brickd 2.4.7 (alternate fix)

Please note that the brickd 2.4.7 preview in that thread is for armhf, not arm64, which is what the OP is running.

brickd 2.4.7 is now available from our APT server.