DM-Device Transport (DM_Device SDK)

Constructor

from motorbridge import Controller

# USB2CANFD, channel 0
with Controller.from_dm_device("usb2canfd", dm_channel="0") as ctrl:
    motor = ctrl.add_damiao_motor(0x01, 0x11, "4340P")

Parameter	Type	Default	Description
`dm_device_type`	`str`	—	`usb2canfd`, `usb2canfd-dual`, or `linkx4c`
`dm_channel`	`str`	`"0"`	`usb2canfd`: `"0"`; `usb2canfd-dual`: `"0"`/`"1"`; `linkx4c`: `"0"`..`"3"`. Default `"0"` (channel 0).

Adapter Reference

`dm_device_type`	Adapter	Channels
`usb2canfd`	USB2CANFD	`0`
`usb2canfd-dual`	USB2CANFD_DUAL	`0`, `1`
`linkx4c`	LINKX4C	`0..3`

Runtime Requirements

Python wheels do not embed the vendor runtime. If the DM_Device runtime is missing, MotorBridge prints the required runtime file, its GitHub download URL, where to place it, and the platform ABI requirements. Install the runtime on demand:

motorbridge-install-dm-device

Platform	Requirements
Linux x86_64	`libusb-1.0.so.0`, `GLIBC_2.14+`, `libstdc++.so.6` with `GLIBCXX_3.4.32`
Linux aarch64	`GLIBC_2.17+`, `libstdc++.so.6` with `GLIBCXX_3.4.22+`
Windows	x86_64 only

Long-running processes reuse the already-open adapter instead of reopening it.

CLI Usage

# Scan a USB2CANFD_DUAL channel 0 for Damiao motors
motorbridge-cli scan --vendor damiao --transport dm-device \
  --dm-device-type usb2canfd-dual --dm-channel 0 \
  --start-id 1 --end-id 16

# Omit --dm-channel to scan every channel for the selected adapter

WebSocket Gateway

dm-device is also exposed through ws_gateway. Targets carry dm_device_type and dm_channel fields. See WebSocket Gateway.

Get Started

Tutorials

API Reference

Best Practices

Reference

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DM-Device Transport (DM_Device SDK)

DM-Device Transport (DM_Device SDK)

Constructor

Adapter Reference

Runtime Requirements

CLI Usage

WebSocket Gateway

See Also

​DM-Device Transport (DM_Device SDK)

​Constructor

​Adapter Reference

​Runtime Requirements

​CLI Usage

​WebSocket Gateway

​See Also

DM-Device Transport (DM_Device SDK)

Constructor

Adapter Reference

Runtime Requirements

CLI Usage

WebSocket Gateway

See Also