Bug#1110780: linux-image-6.12.38+deb13-amd64: HID BPF support is not enabled by default
Hi,
On Mon, Aug 11, 2025 at 12:33:21PM +0530, Raghavendra Kamath wrote:
> Package: src:linux
> Version: 6.12.38-1
> Severity: wishlist
>
> Dear Maintainer,
>
> * What led up to the situation?
> I am an artist using digital graphic tablet and I need a program
> called udev-hid-bpf to configure my tablet pen. To use this tool
> there needs to be HID-BPF support enabled in the kernel. This is
> missing in the default kernel. I would have to use liquorix or
> some other kernel but those give other issues such as wifi not
> working etc.
> So I request you to please enable support for HID-BPF support
> in the kernel.
> Many artists who are using linux will need this support enabled.
> You can read more about this on the blog post from David Revoy
> here - https://www.davidrevoy.com/article1053/xppen-artist-pro-19-gen-2-review-on-gnulinux#fix-unwanted-eraser-mode-on-stylus
>
> * What exactly did you do (or not do) that was effective (or
> ineffective)?
> I tried to report this issue to the udev-hid-bpf developers and
> they were the ones who told me that debian doesn't have this
> support. You can read the bug report here - https://gitlab.freedesktop.org/libevdev/udev-hid-bpf/-/issues/70#note_3046884
>
> * What outcome did you expect instead?
> HID-BPF support to be enabled by default in the kernel
It might make only sense really if we have as ewll udev-hid-bpf . But
as this is like a chicken-egg problem, I'm proposing to enable HID_BPF
alrady on kernel config side, I will see if there are objections from
the other team members.
Cf. https://salsa.debian.org/kernel-team/linux/-/merge_requests/1614
Regards,
Salvatore
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