TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

HID: core: add helper for finding a field with a certain usage

Browse Source 
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>
This commit is contained in:
Kerem Karabay
2024-07-05 11:17:42 +00:00
committed by Jiri Kosina
parent 6b5faec9f5
commit 6edb8cd87c
3 changed files with 29 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/hid.h
+2
View File
@@ -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);