add input report read to windows

hid.go

@@ -1,70 +1,72 @@
-// HID package to access Human Interface Devices.
-// The platform specific parts of this package are heavily based on
-// Signal 11 - HIDAPI. (https://github.com/signal11/hidapi)
-package hid
-
-import "strings"
-
-// DeviceInfo provides general information about a device
-type DeviceInfo struct {
-	// Path contains a Platform-specific device path which is used to identify the device
-	Path string
-	// VendorId contains the USB Vendor ID of the device
-	VendorId uint16
-	// ProductId contains the USB Product ID of the device
-	ProductId uint16
-	// VersionNumber contains the Version / Release Number of the device
-	VersionNumber uint16
-	// Manufacturer of the USB device
-	Manufacturer string
-	// Product contains the product name of the device
-	Product string
-
-	InputReportLength   uint16
-	OutputReportLength  uint16
-	FeatureReportLength uint16
-}
-
-// Device interface for an opened HID USB device
-type Device interface {
-	// Close closes the device and release all keept resources.
-	Close()
-	// Write to the device
-	// (technically a HID report with type 'output' is send to the device)
-	Write([]byte) error
-	// Write to the device
-	// (technically a HID report with type 'feature' is send to the device)
-	WriteFeature([]byte) error
-	// Preform an interrupt transfer to the device
-	WriteInterrupt(byte, []byte) (int, error)
-}
-
-// FindDevices iterates through all devices with a given vendor and product id
-func FindDevices(vendor uint16, product uint16) <-chan *DeviceInfo {
-	result := make(chan *DeviceInfo)
-	go func() {
-		for dev := range Devices() {
-			if dev.VendorId == vendor && dev.ProductId == product {
-				result <- dev
-			}
-		}
-		close(result)
-	}()
-	return result
-}
-
-// FindDevicesByProduct iterates through all devices with a given vendor and product id
-func FindDevicesByProduct(product string) <-chan *DeviceInfo {
-	result := make(chan *DeviceInfo)
-
-	go func() {
-		for dev := range Devices() {
-			if strings.Contains(dev.Product, product) {
-				result <- dev
-			}
-		}
-		close(result)
-	}()
-
-	return result
-}
+// HID package to access Human Interface Devices.
+// The platform specific parts of this package are heavily based on
+// Signal 11 - HIDAPI. (https://github.com/signal11/hidapi)
+package hid
+
+import "strings"
+
+// DeviceInfo provides general information about a device
+type DeviceInfo struct {
+	// Path contains a Platform-specific device path which is used to identify the device
+	Path string
+	// VendorId contains the USB Vendor ID of the device
+	VendorId uint16
+	// ProductId contains the USB Product ID of the device
+	ProductId uint16
+	// VersionNumber contains the Version / Release Number of the device
+	VersionNumber uint16
+	// Manufacturer of the USB device
+	Manufacturer string
+	// Product contains the product name of the device
+	Product string
+
+	InputReportLength   uint16
+	OutputReportLength  uint16
+	FeatureReportLength uint16
+}
+
+// Device interface for an opened HID USB device
+type Device interface {
+	// Close closes the device and release all keept resources.
+	Close()
+	// Write to the device
+	// (technically a HID report with type 'output' is send to the device)
+	Write([]byte) error
+	// Write to the device
+	// (technically a HID report with type 'feature' is send to the device)
+	WriteFeature([]byte) error
+	// Perform an interrupt transfer to the device
+	WriteInterrupt(byte, []byte) (int, error)
+	// Read Input Report from the device
+	Read() ([]byte, error)
+}
+
+// FindDevices iterates through all devices with a given vendor and product id
+func FindDevices(vendor uint16, product uint16) <-chan *DeviceInfo {
+	result := make(chan *DeviceInfo)
+	go func() {
+		for dev := range Devices() {
+			if dev.VendorId == vendor && dev.ProductId == product {
+				result <- dev
+			}
+		}
+		close(result)
+	}()
+	return result
+}
+
+// FindDevicesByProduct iterates through all devices with a given vendor and product id
+func FindDevicesByProduct(product string) <-chan *DeviceInfo {
+	result := make(chan *DeviceInfo)
+
+	go func() {
+		for dev := range Devices() {
+			if strings.Contains(dev.Product, product) {
+				result <- dev
+			}
+		}
+		close(result)
+	}()
+
+	return result
+}

hid_darwin.go

@@ -319,6 +319,10 @@ func (dev *osxDevice) WriteFeature(data []byte) error {
 	return dev.setReport(C.kIOHIDReportTypeFeature, data)
 }
 
+func (d *osxDevice) Read() ([]byte, error) {
+	return nil, errors.New("Read is not implemented")
+}
+
 func (dev *osxDevice) Write(data []byte) error {
 	return dev.setReport(C.kIOHIDReportTypeOutput, data)
 }

hid_linux.go

@@ -151,6 +151,10 @@ func (dev *linuxDevice) WriteFeature(data []byte) error {
 	return dev.writeReport(HID_REPORT_TYPE_FEATURE, data)
 }
 
+func (d *linuxDevice) Read() ([]byte, error) {
+	return nil, errors.New("Read is not implemented")
+}
+
 func (dev *linuxDevice) Write(data []byte) error {
 	return dev.writeReport(HID_REPORT_TYPE_OUTPUT, data)
 }