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(-)
---
base-commit: f55f91622e6f10884d30049f6748588b3718eecd
change-id: 20250821-bpf-rescan-d4764865c67f
Best regards,
--
Benjamin Tissoires <bentiss@xxxxxxxxxx>
