6.2.2 Driver Specific Issues on Linux
Tests have been done using FTDO, PL2303H, PL2303RA and 16550A (some still do exist!). The following has been observed:
6.2.2.1 Parity Errors
Some chipsets do not report properly parity errors. The 16550A chipset works as expected. Issues observed with FTDI, PL2303H, PL2303RA. In particular, on a parity error, more bytes are reported as having parity errors than there are in the stream. Tested using loopback devices with 'comptest'.