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authorBenjamin Tissoires <bentiss@kernel.org>2026-09-14 18:07:30 +0200
committerBenjamin Tissoires <bentiss@kernel.org>2026-09-14 18:07:30 +0200
commit3c2a69d2a92a23d3d178bfce1ef2e0f64279a0ab (patch)
tree7a14a67022b52bc967d6b7d5988d5c4a22759b2a /drivers/hid
parent0c17f622aada5bf66f3fff9ed4d1b7fa93ce2d2f (diff)
parent73712e5e815f5a9ce8a9052d6cf9233fd39c46a4 (diff)
downloadlinux-next-3c2a69d2a92a23d3d178bfce1ef2e0f64279a0ab.tar.gz
linux-next-3c2a69d2a92a23d3d178bfce1ef2e0f64279a0ab.zip
Merge branch 'for-7.4/bpf' into for-next
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/bpf/progs/Huion__Inspiroy-Frego-M.bpf.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/hid/bpf/progs/Huion__Inspiroy-Frego-M.bpf.c b/drivers/hid/bpf/progs/Huion__Inspiroy-Frego-M.bpf.c
index e6ba2295dc77..d081b7c0b771 100644
--- a/drivers/hid/bpf/progs/Huion__Inspiroy-Frego-M.bpf.c
+++ b/drivers/hid/bpf/progs/Huion__Inspiroy-Frego-M.bpf.c
@@ -15,6 +15,12 @@
#define PID_L610 0x2012
#define PEN_RDESC_SIZE 125
+/*
+ * The L610 pen descriptor is also seen 2 bytes shorter (123 bytes); the
+ * anchor bytes checked below (offsets 0-3, 16-17) are the same in both
+ * variants, so accept either length.
+ */
+#define PEN_RDESC_SIZE_SHORT 123
#define SECONDARY_SWITCH_OFFSET 17
HID_BPF_CONFIG(
@@ -44,7 +50,7 @@ int BPF_PROG(fix_secondary_barrel_rdesc, struct hid_bpf_ctx *hctx)
if (!data)
return 0; /* EPERM check */
- if (hctx->size != PEN_RDESC_SIZE)
+ if (hctx->size != PEN_RDESC_SIZE && hctx->size != PEN_RDESC_SIZE_SHORT)
return 0;
if (data[0] != 0x05 || data[1] != 0x0d || /* Usage Page (Digitizers) */
@@ -65,7 +71,8 @@ HID_BPF_OPS(fix_secondary_barrel) = {
SEC("syscall")
int probe(struct hid_bpf_probe_args *ctx)
{
- ctx->retval = ctx->rdesc_size != PEN_RDESC_SIZE;
+ ctx->retval = ctx->rdesc_size != PEN_RDESC_SIZE &&
+ ctx->rdesc_size != PEN_RDESC_SIZE_SHORT;
if (ctx->retval) {
ctx->retval = -EINVAL;
return 0;