blsz
commented
7 years ago I am running gentoo 4.9.34 on a mid-2011 iMac 27". The FaceTime HD camera appears to be detected but /dev/video* is not created and /sys/class/video4linux/ is empty.
kernel config https://gist.github.com/anonymous/56f103b8c45e4980a2fbb359c745b761
# lsmod | grep bdc_pci
# lsmod | grep facetimehd
facetimehd 42626 0
videobuf2_dma_sg 6929 1 facetimehd
videobuf2_v4l2 14283 1 facetimehd
videodev 124627 2 facetimehd,videobuf2_v4l2
videobuf2_core 26394 2 facetimehd,videobuf2_v4l2
# dmesg
...
[ 4.197533] usb 1-2: New USB device found, idVendor=05ac, idProduct=850b
[ 4.199295] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 4.199296] usb 1-2: Product: FaceTime HD Camera (Built-in)
[ 4.199297] usb 1-2: Manufacturer: Apple Inc.
[ 4.199298] usb 1-2: SerialNumber: CC2B3V04X4DGGFLP
...
[ 7.156624] Linux video capture interface: v2.00
[ 7.159056] facetimehd: loading out-of-tree module taints kernel.
# journalctl -b | grep -i facetime
Oct 14 11:44:54 bigmac kernel: usb 1-2: Product: FaceTime HD Camera (Built-in)
Oct 14 11:44:54 bigmac kernel: facetimehd: loading out-of-tree module taints kernel.
Oct 14 11:44:54 bigmac systemd-modules-load[3440]: Inserted module 'facetimehd'
# uname -r
4.9.34-gentoo
# sudo dmidecode -s system-product-name
iMac12,2
# lsusb | grep Apple
Bus 002 Device 004: ID 05ac:8242 Apple, Inc. Built-in IR Receiver
Bus 002 Device 003: ID 05ac:8403 Apple, Inc. Internal Memory Card Reader
Bus 001 Device 003: ID 05ac:850b Apple, Inc.
Bus 001 Device 008: ID 05ac:820b Apple, Inc. Bluetooth HID Mouse
Bus 001 Device 007: ID 05ac:820a Apple, Inc. Bluetooth HID Keyboard
Bus 001 Device 006: ID 05ac:8215 Apple, Inc. Built-in Bluetooth 2.0+EDR HCI
# cat /etc/modules-load.d/facetimehd.conf
videobuf2-core
videobuf2_v4l2
videobuf2-dma-sg
facetimehd
# ls /sys/class/video4linux/
# ls -al /dev/ | grep video
crw-rw---- 1 root video 29, 0 Oct 14 11:44 fb0
crw-rw---- 1 root video 29, 1 Oct 14 11:44 fb1
vastbinderj
I haven't select bdc_pci in my kernel, but get no /dev/video0
gentoo-mbp ~ # lsmod |grep bdc_pci gentoo-mbp ~ # lsmod |grep facetimehd facetimehd 39964 0 videobuf2_dma_sg 6361 1 facetimehd gentoo-mbp ~ # dmesg |grep facetimehd [ 5.613643] facetimehd: no symbol version for module_layout [ 5.613644] facetimehd: loading out-of-tree module taints kernel. [ 7.979281] facetimehd 0000:02:00.0: Direct firmware load for facetimehd/1871_01XX.dat failed with error -2 gentoo-mbp ~ # uname -r 4.9.34-gentoo gentoo-mbp ~ # ls /dev/ |grep video