diff options
| -rw-r--r-- | chip/stm32/usb_hid_touchpad.c | 23 | ||||
| -rw-r--r-- | include/usb_hid_touchpad.h | 1 |
2 files changed, 24 insertions, 0 deletions
diff --git a/chip/stm32/usb_hid_touchpad.c b/chip/stm32/usb_hid_touchpad.c index 6a658ce66d..1d835926bc 100644 --- a/chip/stm32/usb_hid_touchpad.c +++ b/chip/stm32/usb_hid_touchpad.c @@ -166,9 +166,26 @@ static const uint8_t report_desc[] = { 0x95, 0x01, /* Report Count (1) */ 0x09, 0x56, /* Usage (0x56, Relative Scan Time) */ 0x81, 0x02, /* Input (Data,Var,Abs) */ + + 0x85, REPORT_ID_DEVICE_CAPS, /* Report ID (Device Capabilities) */ + 0x09, 0x55, /* Usage (Contact Count Maximum) */ + 0x09, 0x59, /* Usage (Pad Type) */ + 0x25, 0x0F, /* Logical Maximum (15) */ + 0x75, 0x08, /* Report Size (8) */ + 0x95, 0x01, /* Report Count (2) */ + 0xB1, 0x02, /* Feature (Data,Var,Abs) */ + 0xC0, /* End Collection */ }; +/* Device capabilities feature report. */ +static const uint8_t device_caps_response[] = { + REPORT_ID_DEVICE_CAPS, + + MAX_FINGERS, /* Contact Count Maximum */ + 0x00, /* Pad Type: Depressible click-pad */ +}; + const struct usb_hid_descriptor USB_CUSTOM_DESC_VAR(USB_IFACE_HID_TOUCHPAD, hid, hid_desc_tp) = { .bLength = 9, @@ -328,6 +345,12 @@ static int get_report(uint8_t report_id, uint8_t report_type, const uint8_t **buffer_ptr, int *buffer_size) { + switch (report_id) { + case REPORT_ID_DEVICE_CAPS: + *buffer_ptr = device_caps_response; + *buffer_size = MIN(sizeof(device_caps_response), *buffer_size); + return 0; + } return -1; } diff --git a/include/usb_hid_touchpad.h b/include/usb_hid_touchpad.h index 3d6207b19e..64d8b89f12 100644 --- a/include/usb_hid_touchpad.h +++ b/include/usb_hid_touchpad.h @@ -11,6 +11,7 @@ #define USB_HID_TOUCHPAD_TIMESTAMP_UNIT 100 /* usec */ #define REPORT_ID_TOUCHPAD 0x01 +#define REPORT_ID_DEVICE_CAPS 0x0A #define MAX_FINGERS 5 |