Re: [PATCH v2 1/4] HID: hid-sensor-custom: Add custom sensor iio support
From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Date: 2020-11-24 11:32:38
Also in:
linux-iio, lkml
Hi ...
quoted
quoted
sysfs_remove_group(&sensor_inst->pdev->dev.kobj,diff --git a/include/linux/hid-sensor-ids.h b/include/linux/hid-sensor-ids.h index 530c09f3e64a..46db3056f04b 100644 --- a/include/linux/hid-sensor-ids.h +++ b/include/linux/hid-sensor-ids.h@@ -128,6 +128,10 @@ #define HID_USAGE_SENSOR_UNITS_DEGREES_PER_SECOND 0x15 /* Common selectors */ +#define HID_USAGE_SENSOR_PROP_DESC 0x200300 +#define HID_USAGE_SENSOR_PROP_FRIENDLY_NAME 0x200301 +#define HID_USAGE_SENSOR_PROP_SERIAL_NUM 0x200307 +#define HID_USAGE_SENSOR_PROP_MANUFACTURER 0x200305 #define HID_USAGE_SENSOR_PROP_REPORT_INTERVAL 0x20030E #define HID_USAGE_SENSOR_PROP_SENSITIVITY_ABS 0x20030F #define HID_USAGE_SENSOR_PROP_SENSITIVITY_RANGE_PCT 0x200310@@ -159,4 +163,39 @@ #define HID_USAGE_SENSOR_PROP_REPORTING_STATE_NO_EVENTS_ENUM 0x200840 #define HID_USAGE_SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM 0x200841 +/* Custom Sensor (2000e1) */ +#define HID_USAGE_SENSOR_HINGE 0x20020B +#define HID_USAGE_SENSOR_DATA_FIELD_LOCATION 0x200400 +#define HID_USAGE_SENSOR_DATA_FIELE_TIME_SINCE_SYS_BOOT 0x20052B +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_USAGE 0x200541 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE 0x200543Given these are all defined in a block could we use a macro? HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE(x) 0x200543 + (x) perhaps? I'm not sure what the preferred convention is in this file.If using HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE(x), we should give a range to x, like (1<x<28). How to ensure the x is in the range? It can be an issue when someone using x out of the range.
It can be done via build time checking. https://elixir.bootlin.com/linux/latest/source/include/linux/build_bug.h#L49 Normally we wouldn't bother and would rely on review to pick up on this but I'd have no problem with a paranoid check in the macro. Particularly as 28 isn't exactly and obvious number to support!
Thanks Xiangquoted
quoted
+#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_1 0x200544 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_2 0x200545 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_3 0x200546 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_4 0x200547 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_5 0x200548 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_6 0x200549 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_7 0x20054A +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_8 0x20054B +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_9 0x20054C +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_10 0x20054D +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_11 0x20054E +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_12 0x20054F +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_13 0x200550 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_14 0x200551 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_15 0x200552 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_16 0x200553 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_17 0x200554 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_18 0x200555 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_19 0x200556 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_20 0x200557 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_21 0x200558 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_22 0x200559 +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_23 0x20055A +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_24 0x20055B +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_25 0x20055C +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_26 0x20055D +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_27 0x20055E +#define HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE_28 0x20055F + #endif