Testing low level UART driver

[Greg KH]

On Wed, Jan 24, 2018 at 06:46:06PM +0530, Muni Sekhar wrote:
> Hi All,
> 
> Does Linux kernel tree has any standard utilities to test any low
> level UART driver?

What do you mean by "low level UART driver"?

Have you tried one of the many different userspace serial port tools?
Those are usually the best test of a system, along with some simple
loop-back tests if you have the proper hardware plugged into the serial
port.

What driver are you trying to test?

thanks,

greg k-h