RaspberryPI IrToy - restore /dev/ttyACM0 interface in newer kernels

kludge_cdc_acm_irtoy.sh

cd /lib/modules/`uname -r`/kernel/drivers && \
  mv -n media/rc/ir_toy.ko media/rc/ir_toy.ko.DISABLED && \
  mv -n usb/class/cdc-acm.ko usb/class/cdc-acm.ko.DISABLED && \
  env -i sed -e 's/\xd8\x04\x08\xfd/\xff\x04\x08\xfd/' < usb/class/cdc-acm.ko.DISABLED > usb/class/cdc-acm.ko && \
  depmod -a

# reboot after doing the change.
#
# This changes blacklisting of USB ID `04d8:fd08` in cdc-acm, so IrToy gets recognized
# as it was in previous kernel versions, and `/dev/ttyACM0` gets created for it instead of `/dev/lirc0`
# For those who don't use lirc but IrToy directly and so need compatibility with that...
#
# works at least in Raspbian.org Buster raspberrypi-kernel 1:1.20211029-1~buster armhf

for automation, see https://gist.github.com/mnalis/9c54023ec5067d6a72d43f2771d0b747

Thanks for that.

I can confirm that it works on x86_64 Ubuntu with kernel 5.15

Cheers!

For kernel with .gz compressed module, do I just need to decompress the module first, perform the sed command and then re-gz it?

@matejdro I've never used compressed kernel modules, but yes, I assume it should work just like you described.

For kernel with .gz compressed module, do I just need to decompress the module first, perform the sed command and then re-gz it?

Did you ever try this? I'm facing this issue on Arch where the modules are packed as xz files.

just decompress and apply the script, no need to compress again

works fine on 5.10.92-2-rpi-legacy-ARCH

thanks for sharing!

thank you!