Re: Testing low level UART driver

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On Wed, Jan 24, 2018 at 08:43:56PM +0530, Muni Sekhar wrote:
> On Wed, Jan 24, 2018 at 6:52 PM, Greg KH <greg@xxxxxxxxx> wrote:
> > 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"?
> bcm63xx_uart.c
> 
> >
> > Have you tried one of the many different userspace serial port tools?
> I tried only minicom. Could you let me know the best userspace serial
> port tools.

What doesn't work with minicom?  That's a really good tester given that
it exercises the tty layer a lot.

> > 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?
> I’m trying to test Broadcom 63xx integrated uart driver.

What currently does not work with it?  The driver has been around for a
very long time, it should be really stable.

thanks,

greg k-h

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