No EdgeTPU detected

[elminster13]

I'm getting the following error on running my frigate container where I have the Coral USB plugged in.

2023-05-28 15:33:28.007268614 [2023-05-28 15:33:27] frigate.app INFO : Starting Frigate (0.12.0-da3e197) 2023-05-28 15:33:28.020884455 [2023-05-28 15:33:28] frigate.config WARNING : Customizing more than a detector model path is unsupported. 2023-05-28 15:33:28.024923807 [2023-05-28 15:33:28] peewee_migrate INFO : Starting migrations 2023-05-28 15:33:28.030541860 [2023-05-28 15:33:28] peewee_migrate INFO : There is nothing to migrate 2023-05-28 15:33:28.042768895 [2023-05-28 15:33:28] frigate.app INFO : Output process started: 943 2023-05-28 15:33:28.046601999 [2023-05-28 15:33:28] frigate.app INFO : Camera processor started for G4_Bullet_Driveway: 945 2023-05-28 15:33:28.050013236 [2023-05-28 15:33:28] frigate.app INFO : Capture process started for G4_Bullet_Driveway: 946 2023-05-28 15:33:28.072946909 [2023-05-28 15:33:28] detector.coral INFO : Starting detection process: 942 2023-05-28 15:33:28.072950735 [2023-05-28 15:33:28] frigate.detectors.plugins.edgetpu_tfl INFO : Attempting to load TPU as usb 2023-05-28 15:33:30.733426643 [2023-05-28 15:33:30] frigate.detectors.plugins.edgetpu_tfl INFO : TPU found 2023-05-28 15:33:30.733434078 [2023-05-28 15:33:30] frigate.detectors.plugins.edgetpu_tfl ERROR : No EdgeTPU was detected. If you do not have a Coral device yet, you must configure CPU detectors.

I'm running docker in an LXC on proxmox and I have passed through the usb to the container:

arch: amd64 cores: 2 features: fuse=1,keyctl=1,nesting=1 hostname: docker memory: 2048 mp0: /mnt/lxc_shares/frigate_network_storage/,mp=/opt/frigate/media net0: name=eth0,bridge=vmbr0,hwaddr=56:f3:86:cb:93:b9,ip=dhcp,type=veth onboot: 1 ostype: debian rootfs: zfs_pool:subvol-103-disk-0,size=64G swap: 512 lxc.mount.entry: /dev/bus/usb/002/ dev/bus/usb/002/ none bind,optional,create=dir 0,0 lxc.cgroup2.devices.allow: c 189:* rwm lxc.apparmor.profile: unconfined lxc.cgroup2.devices.allow: a lxc.cap.drop: lxc.mount.auto: cgroup:rw

output of lsusb on proxmox:

root@pve:~# lsusb Bus 002 Device 002: ID 18d1:9302 Google Inc. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

my frigate config file looks like this:

`database:
path: /db/frigate.db

mqtt:
enabled: False

ffmpeg:
output_args:
record: preset-record-ubiquiti
rtmp: preset-rtmp-ubiquiti

detectors:
coral:
type: edgetpu
device: usb
model:
path: "/custom_model.tflite"

objects:
track:
- person
- cat
- dog
- package
- car
filters:
person:
min_area: 5000
max_area: 8000000
threshold: 0.80

record:
events:
pre_capture: 7
post_capture: 10

go2rtc:
streams:
G4_Bullet_Driveway:
- rtspx://192.168.86.1:7441/8Xhmm5ORIxQsf7CN
G4_Bullet_Driveway_Sub:
- rtspx://192.168.86.1:7441/l8IpBRPcfDVuaiEw

cameras:
G4_Bullet_Driveway:
ffmpeg:
inputs:
- path: rtsp://127.0.0.1:8554/G4_Bullet_Driveway?video=copy
input_args: preset-rtsp-restream
roles:
- detect
- path: rtsp://127.0.0.1:8554/G4_Bullet_Driveway_Sub?video=copy
input_args: preset-rtsp-restream
roles:
- record
rtmp:
enabled: False
detect:
width: 2688
height: 1512
record:
enabled: True
retain:
days: 1
mode: all
events:
retain:
mode: active_objects
default: 10
snapshots:
enabled: True
retain:
default: 10`

any ideas?

[elminster13]

I think removing the / after 002 fixed my problem!!

lxc.mount.entry: /dev/bus/usb/002 dev/bus/usb/002 none bind,optional,create=dir 0,0

[elminster13]

I think I spoke too soon, something is still not quite right and im stumped as to what the issue is.

Heres my log
2023-05-29 13:24:43.878775496 [2023-05-29 13:24:41] frigate.detectors.plugins.edgetpu_tfl INFO : Attempting to load TPU as usb
2023-05-29 13:24:43.880435233 [2023-05-29 13:24:43] frigate.detectors.plugins.edgetpu_tfl INFO : TPU found
2023-05-29 13:24:43.880440331 [2023-05-29 13:24:43] frigate.detectors.plugins.edgetpu_tfl ERROR : No EdgeTPU was detected. If you do not have a Coral device yet, you must configure CPU detectors.

but yet it shows the coral in the system window:

[NickM-27]

it will always show the coral there as that is from the config, if the logs show it is not found then it is not found

[elminster13]

It seems to be working again - I'm not sure what changed tbh but ill post back here if i figure it out.

[elminster13]

I have narrowed down my issue but im unclear why its failing. within my config file I have the following per the docs:

detectors:
coral:
type: edgetpu
device: usb
model:
path: "/custom_model.tflite"

If I have the model included then the TPU is not found. If I hash those towo lines out model and path then the TPU is found.

[NickM-27]

The docs are just showing what can be configured, you should not be including those lines if you're not using a custom model

[elminster13]

okay thank you - i wasnt clear on that.