The driver is maintained in the Linux Mainline Kernel, please check that the following options are activated in the Linux Kernel configuration.
The driver can be downloaded from the Vendor website:
https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers
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
The driver can be downloaded from the FTDI website:
https://ftdichip.com/drivers/vcp-drivers/
An installation guide can be found at the following link:
https://ftdichip.com/document/installation-guides/
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