Public bug reported:
I recently upgraded to 21.10 to give it a spin.
Till now the cdc_acm kernel module was included, however this is not the case
for 5.13. An equivalent amd64 5.13 kernel does.
root@rpi:~# dlocate -S cdc-acm.ko
linux-modules-5.11.0-1019-raspi:
/lib/modules/5.11.0-1019-raspi/kernel/drivers/usb/class/cdc-acm.ko
root@pc:~# dlocate -S cdc-acm.ko
linux-modules-extra-5.11.0-37-generic:
/lib/modules/5.11.0-37-generic/kernel/drivers/usb/class/cdc-acm.ko
linux-modules-extra-5.13.0-16-generic:
/lib/modules/5.13.0-16-generic/kernel/drivers/usb/class/cdc-acm.ko
I have run the following to circumvent this issue:
# flash-kernel --force 5.11.0-1019-raspi
** Affects: linux-raspi (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1946601
Title:
linux-image-5.13.0-1007-raspi does not include cdc_acm module
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