Golang udev_device_get_syspath Examples

Example #1

File: device.go Project: qmsk/onewire

func (self *Device) fromUdev(ptr *C.struct_udev_device) error {
	self.DevPath = C.GoString(C.udev_device_get_devpath(ptr))
	self.Subsystem = C.GoString(C.udev_device_get_subsystem(ptr))
	self.DevType = C.GoString(C.udev_device_get_devtype(ptr))
	self.SysPath = C.GoString(C.udev_device_get_syspath(ptr))
	self.SysName = C.GoString(C.udev_device_get_sysname(ptr))
	self.SysNum = C.GoString(C.udev_device_get_sysnum(ptr))
	self.DevNode = C.GoString(C.udev_device_get_devnode(ptr))

	return nil
}

Example #2

File: udev.go Project: jessta/udev

func (d Device) SysPath() string {
	return C.GoString(C.udev_device_get_syspath(d.ptr))
}

Example #3

File: device.go Project: jochenvg/go-udev

// Syspath returns the sys path of the udev device.
// The path is an absolute path and starts with the sys mount point.
func (d *Device) Syspath() string {
	d.lock()
	defer d.unlock()
	return C.GoString(C.udev_device_get_syspath(d.ptr))
}

Example #4

File: backend_linux.go Project: ololoshka2871/serialdeviceenumeratorgo

func enumerate() ([]DeviceDescription, error) {
	var result []DeviceDescription

	udev := C.udev_new()
	if udev == nil {
		return nil, errors.New("Udev connection failed!")
	}

	enumerate := C.udev_enumerate_new(udev)
	if enumerate == nil {
		return nil, errors.New("Unix: udev_enumerate_new() returned: 0")
	}

	var devices *C.struct_udev_list_entry

	C.udev_enumerate_add_match_subsystem(enumerate, C.CString("tty"))
	C.udev_enumerate_scan_devices(enumerate)

	devices = C.udev_enumerate_get_list_entry(enumerate)

	for devices != nil {
		syspath := C.udev_list_entry_get_name(devices)
		udev_device := C.udev_device_new_from_syspath(udev, syspath)

		if udev_device != nil {
			var dev DeviceDescription

			s := C.GoString(C.udev_device_get_devnode(udev_device))
			for _, mask := range devNamesMask {
				if strings.Contains(s, mask) {
					dev.Description = C.GoString(C.udev_device_get_property_value(
						udev_device, C.CString("ID_MODEL_FROM_DATABASE")))
					dev.Revision = C.GoString(C.udev_device_get_property_value(
						udev_device, C.CString("ID_REVISION")))
					dev.Bus = C.GoString(C.udev_device_get_property_value(
						udev_device, C.CString("ID_BUS")))
					dev.Driver = C.GoString(C.udev_device_get_property_value(
						udev_device, C.CString(eqBusDrvMap[dev.Bus])))
					dev.LocationInfo = strings.Replace(C.GoString(C.udev_device_get_property_value(
						udev_device, C.CString("ID_MODEL_ENC"))), "\\x20", " ", -1)
					dev.Manufacturer = C.GoString(C.udev_device_get_property_value(
						udev_device, C.CString("ID_VENDOR_FROM_DATABASE")))
					dev.SubSystem = C.GoString(C.udev_device_get_property_value(
						udev_device, C.CString("SUBSYSTEM")))
					dev.SystemPath = C.GoString(C.udev_device_get_syspath(udev_device))
					dev.ShortName = C.GoString(C.udev_device_get_property_value(
						udev_device, C.CString("DEVNAME")))
					dev.Name = dev.ShortName
					dev.FriendlyName = fmt.Sprintf("%s (%s)", dev.Description, dev.ShortName)

					var v []byte
					var err error
					if v, err = hex.DecodeString(C.GoString(C.udev_device_get_property_value(
						udev_device, C.CString("ID_VENDOR_ID")))); err == nil && len(v) == 2 {
						dev.VendorID = (uint16)(v[0])<<8 + (uint16)(v[1])
					}
					if v, err = hex.DecodeString(C.GoString(C.udev_device_get_property_value(
						udev_device, C.CString("ID_MODEL_ID")))); err == nil && len(v) == 2 {
						dev.ProductID = (uint16)(v[0])<<8 + (uint16)(v[1])
					}

					result = append(result, dev)
				}
			}
		}
		devices = C.udev_list_entry_get_next(devices)
	}

	C.udev_enumerate_unref(enumerate)

	return result, nil
}