![]() ![]() If you use this VCP driver, please check that the CDC-ACM driver was not installed for the USB UART devices mentioned above. Because of this, device manufacturers can create an alternate, or custom driver that is capable of accessing the device specific function sets, such as hardware flow control or GPIO functions. This generic driver does not have any knowledge about specific device protocols. The CDC-ACM driver has limited capabilities to control specific devices. In Linux, this driver file name is cdc-acm. Linux operating systems supply a default CDC-ACM driver that can be used with these USB UART devices. USB to UART(s) chip ch342/ch343/ch344/ch347/ch9101/ch9102/ch9103/ch9143 are fully compliant to the Communications Device Class (CDC) standard, they will work with a standard CDC-ACM driver (CDC - Abstract Control Model).
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