Improve the accuracy of the baud rate generator by using round-to-closest instead of truncating when calculating baud rate divisors.
Quoted 1 line · Nikolaj Fogh
I have experienced that the
ftdi_siodriver gives less-than-optimal baud rates as the driver truncates instead of rounds to nearest during baud rate divisor calculation.
Please break your lines at 72 cols or so, and use the common subject prefix (e.g. "USB: serial: ftdi_sio: improve...") with a concise summary.
Quoted 1 line
This patch improves on the baud rate generation. The generated baud rate corresponds to the optimal baud rate achievable with the chip. This is what the windows driver gives as well.
How did you verify this? Did you trace and compare the divisors actually requested by the Windows driver, or did you measure the resulting rates using a scope?
Thanks,
Johan