diff options
| author | Kerem Karabay <kekrby@gmail.com> | 2024-07-05 11:17:42 +0000 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.com> | 2024-08-02 12:42:23 +0200 |
| commit | 6edb8cd87cca5dd4389d4ea2d84b66ea94341bbd (patch) | |
| tree | 80d6ee0630e7da4ee8ca454a0cb66046e69f21c4 /include/linux/hid.h | |
| parent | 6b5faec9f564ea627c66064a4a6a5904fe5a07dd (diff) | |
| download | linux-6edb8cd87cca5dd4389d4ea2d84b66ea94341bbd.tar.gz linux-6edb8cd87cca5dd4389d4ea2d84b66ea94341bbd.tar.bz2 linux-6edb8cd87cca5dd4389d4ea2d84b66ea94341bbd.zip | |
HID: core: add helper for finding a field with a certain usage
This helper will allow HID drivers to easily determine if they should
bind to a hid_device by checking for the prescence of a certain field
when its ID is not enough, which can be the case on USB devices with
multiple interfaces and/or configurations.
Convert google-hammer driver to use it, and remove now superfluous
hammer_has_usage().
[jkosina@suse.com: expand changelog with the information about
google-hammer being added as user of this API ]
Signed-off-by: Kerem Karabay <kekrby@gmail.com>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Diffstat (limited to 'include/linux/hid.h')
| -rw-r--r-- | include/linux/hid.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h index 1533c9dcd3a6..2deff79f39a1 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -940,6 +940,8 @@ extern void hidinput_report_event(struct hid_device *hid, struct hid_report *rep extern int hidinput_connect(struct hid_device *hid, unsigned int force); extern void hidinput_disconnect(struct hid_device *); +struct hid_field *hid_find_field(struct hid_device *hdev, unsigned int report_type, + unsigned int application, unsigned int usage); int hid_set_field(struct hid_field *, unsigned, __s32); int hid_input_report(struct hid_device *hid, enum hid_report_type type, u8 *data, u32 size, int interrupt); |