diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/hid.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h index e4e2a5643bda..fb1a3f3ad9fa 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -648,6 +648,7 @@ enum hid_battery_status { * @avoid_query: if true, avoid querying battery (e.g., for stylus) * @present: if true, battery is present (may be dynamic) * @ratelimit_time: rate limiting for battery reports + * @list: list node for linking into hid_device's battery list */ struct hid_battery { struct hid_device *dev; @@ -662,6 +663,7 @@ struct hid_battery { bool avoid_query; bool present; ktime_t ratelimit_time; + struct list_head list; }; struct hid_driver; @@ -700,9 +702,10 @@ struct hid_device { #ifdef CONFIG_HID_BATTERY_STRENGTH /* * Power supply information for HID devices which report - * battery strength. battery is non-NULL if successfully registered. + * battery strength. Each battery is tracked separately in the + * batteries list. */ - struct hid_battery *battery; + struct list_head batteries; #endif unsigned long status; /* see STAT flags above */ @@ -766,7 +769,9 @@ static inline void hid_set_drvdata(struct hid_device *hdev, void *data) #ifdef CONFIG_HID_BATTERY_STRENGTH static inline struct hid_battery *hid_get_battery(struct hid_device *hdev) { - return hdev->battery; + if (list_empty(&hdev->batteries)) + return NULL; + return list_first_entry(&hdev->batteries, struct hid_battery, list); } #endif |