Most modern distributions include a method of automatically creating these files in the /dev file system when they are identified by a device driver. It may now be necessary to create the character special file used to interface with the device.
# modprobe ftdi_sio vendor=0x0C52 product=0圎402Ħ) The driver should now have identified the Sealevel device and is ready for communications. To inform the FTDI driver of the Sealevel device’s identification information, issue the following command. Using these parameters, it is unnecessary to recompile the driver. The driver allows a single vendor and product pair to be passed at module load time.
However, the newest devices may not be currently included in the driver. This command can be issued without detriment when the driver is not loaded.ĥ) The FTDI serial USB driver in Linux contains many product IDs for Sealevel devices. This can be achieved by issuing the following command. Depending on distribution, it may be necessary to unload the driver if it is already loaded. For this example, we will attach the device driver to the e402 Sealevel hardware, which is the USB to RS-485 bridge used in Sealevel SeaI/O U-series data acquisition modules.īus 002 Device 011: ID 0c52:e402 Sealevel Systems, Inc.īus 002 Device 010: ID 0c52:2101 Sealevel Systems, Inc.Ĥ) The kernel driver module for all FTDI based USB serial devices is sometimes configured for automatic load at boot time. The -s 0c52 parameter returns only information about Sealevel devices attached to the system’s USB subsystem. This can be accomplished by using the lsusb command as demonstrated below. This varies by distribution, but the most common method is to use the su command as demonstrated below.ģ) Ensure that the device has been detected by the USB subsystem. Any device with more than two ports requires a driver modification and recompile (see Option 2 below).Ģ) Open a terminal window and attain root privileges. This method will ONLY work with single and dual port devices.Commands preceded by ‘#’ require root-level privileges.Commands preceded by ‘$’ can be issued by user-level privileges.Option 1: Serial USB Installation Instructions (No Recompile Necessary) Any distribution specific conflicts should be resolved by consulting the distribution’s documentation. There are often subtle differences in Linux distributions. However, the newest devices may not be currently included in the driver. This guide consists of example USB device installation instructions using either driver load time parameters or modification of the device driver to natively support the device. The serial USB driver in Linux contains many product IDs for Sealevel devices.
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