Re: [U-Boot] [RFC PATCH 1/2] serial_mxc: return question mark for chars received with high bit set

Hi all,

On 05/14/2014 11:04 AM, Eric Nelson wrote:

This patch allows testing of patch 2/2 in the series by forcing bytes read from the i.MX serial port to be printable.

Without this, it's very hard to tell that a series of in-bound '\xff' characters are being produced, because they'll be silently ignored.

An even easier test is to use stty at a Linux shell:

# stty -F /dev/ttymxc1 19200

And then enter a 'b' at 115200.