On Thu, 21 Aug 2025, Benjamin Tissoires wrote: > This happened while Peter was trying to fix a Viewsonic device: the HID > device sending multiotuch data through a proprietary collection was > handled by hid-generic, and we don't have any way of attaching it to > hid-multitouch because the pre-scanning wasn't able to see the Contact > ID HID usage. > > After a little of back and forth, it turns out that the best solution is > to re-scan the device when a report descriptor is changed from the BPF > point of view. > > Signed-off-by: Benjamin Tissoires <bentiss@xxxxxxxxxx> > --- > Benjamin Tissoires (2): > HID: core: factor out hid_set_group() > HID: bpf: rescan the device for the group after a load/unload > > drivers/hid/hid-core.c | 44 ++++++++++++++++++++++++++++++++++++-------- > 1 file changed, 36 insertions(+), 8 deletions(-) Now in hid.git#for-6.18/core. Thanks, -- Jiri Kosina SUSE Labs
