diff options
| author | Werner Sembach <wse@tuxedocomputers.com> | 2025-02-11 14:39:05 +0100 |
|---|---|---|
| committer | Benjamin Tissoires <bentiss@kernel.org> | 2025-05-13 15:59:03 +0200 |
| commit | a98e892c694284256296465a78d11072e2c5419f (patch) | |
| tree | 4cb41198bdac5684f34eee1140bed9219378c4e8 /include/linux | |
| parent | a058002358b7aaf14674b2a0daa5194bfa5720a1 (diff) | |
HID: core: Add functions for HID drivers to react on first open and last close call
Adds a new function to the hid_driver struct that is called when the
userspace starts using the device, and another one that is called when
userspace stop using the device. With this a hid driver can implement
special suspend handling for devices currently not in use.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Link: https://patch.msgid.link/20250211133950.422232-1-wse@tuxedocomputers.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/hid.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h index a1305210b2fd..568a9d8c749b 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -795,6 +795,8 @@ struct hid_usage_id { * @suspend: invoked on suspend (NULL means nop) * @resume: invoked on resume if device was not reset (NULL means nop) * @reset_resume: invoked on resume if device was reset (NULL means nop) + * @on_hid_hw_open: invoked when hid core opens first instance (NULL means nop) + * @on_hid_hw_close: invoked when hid core closes last instance (NULL means nop) * * probe should return -errno on error, or 0 on success. During probe, * input will not be passed to raw_event unless hid_device_io_start is @@ -850,6 +852,8 @@ struct hid_driver { int (*suspend)(struct hid_device *hdev, pm_message_t message); int (*resume)(struct hid_device *hdev); int (*reset_resume)(struct hid_device *hdev); + void (*on_hid_hw_open)(struct hid_device *hdev); + void (*on_hid_hw_close)(struct hid_device *hdev); /* private: */ struct device_driver driver; |