The branch main has been updated by wulf:
URL:
https://cgit.FreeBSD.org/src/commit/?id=d51e437669e4ac35ac4be366241ae6ba4a16c378
commit d51e437669e4ac35ac4be366241ae6ba4a16c378
Author: Vladimir Kondratyev <w...@freebsd.org>
AuthorDate: 2021-09-02 19:32:57 +0000
Commit: Vladimir Kondratyev <w...@freebsd.org>
CommitDate: 2021-09-02 19:35:27 +0000
hidbus(4): Add routine to check presence of collection of given usage
MFC after: 2 week
---
sys/dev/hid/hidbus.c | 19 +++++++++++++++++++
sys/dev/hid/hidbus.h | 1 +
2 files changed, 20 insertions(+)
diff --git a/sys/dev/hid/hidbus.c b/sys/dev/hid/hidbus.c
index 58d19a2a4d74..69f3d3911631 100644
--- a/sys/dev/hid/hidbus.c
+++ b/sys/dev/hid/hidbus.c
@@ -172,6 +172,25 @@ hidbus_locate(const void *desc, hid_size_t size, int32_t
u, enum hid_kind k,
return (0);
}
+bool
+hidbus_is_collection(const void *desc, hid_size_t size, int32_t usage,
+ uint8_t tlc_index)
+{
+ struct hid_data *d;
+ struct hid_item h;
+ bool ret = false;
+
+ d = hid_start_parse(desc, size, 0);
+ HIDBUS_FOREACH_ITEM(d, &h, tlc_index) {
+ if (h.kind == hid_collection && h.usage == usage) {
+ ret = true;
+ break;
+ }
+ }
+ hid_end_parse(d);
+ return (ret);
+}
+
static device_t
hidbus_add_child(device_t dev, u_int order, const char *name, int unit)
{
diff --git a/sys/dev/hid/hidbus.h b/sys/dev/hid/hidbus.h
index 05911fff5732..d4324a2dc394 100644
--- a/sys/dev/hid/hidbus.h
+++ b/sys/dev/hid/hidbus.h
@@ -152,6 +152,7 @@ int hidbus_locate(const void *desc, hid_size_t size,
int32_t u,
enum hid_kind k, uint8_t tlc_index, uint8_t index,
struct hid_location *loc, uint32_t *flags, uint8_t *id,
struct hid_absinfo *ai);
+bool hidbus_is_collection(const void *, hid_size_t, int32_t, uint8_t);
const struct hid_device_id *hidbus_lookup_id(device_t,
const struct hid_device_id *, int);
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