===== Silicon Labs CP210x ===== The driver is maintained in the Linux Mainline Kernel, please check that the following options are activated in the Linux Kernel configuration. * CONFIG_USB_SERIAL * CONFIG_USB_SERIAL_CP210X The driver can be downloaded from the Vendor website:\\ [[https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers|https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers]] ===== FTDI FTXXX ===== The FTDI driver is maintained in the Linux mainline kernel, the configuration options below must be activated in the Linux kernel configuration to operate the USB-to-Serial converter * CONFIG_USB_SERIAL * CONFIG_USB_SERIAL_FTDI_SIO The driver can be downloaded from the FTDI website:\\ [[https://ftdichip.com/drivers/vcp-drivers/|https://ftdichip.com/drivers/vcp-drivers/]]\\ \\ An installation guide can be found at the following link:\\ [[https://ftdichip.com/document/installation-guides/]] ===== Microchip MCP2221 ===== In order to be able to use the MCP2200/MCP2221 with Linux, the kernel must have support for USB CDC class drivers. The cdc_acm driver is used for the CDC interface of the device. The driver can be downloaded from the Microchip website:\\ [[https://www.microchip.com/en-us/product/MCP2221]]\\ ===== No USB to Serial =====