[PATCH v2] serial: 8250_dw: Improve unwritable LCR workaround
From: Tim Kryger <hidden>
Date: 2013-11-28 02:46:34
Also in:
linux-serial, lkml
On Wed, Nov 27, 2013 at 10:54 AM, Ezequiel Garcia [off-list ref] wrote:
On Tue, Nov 26, 2013 at 03:03:03PM -0800, Tim Kryger wrote:
quoted
An external device may be keeping the UART busy and preventing LCR from being written. What device is attached to ttyS1?There's no device attached at ttyS1. I've just tested this in another box and it seems the same error is obtained on each unused port:
Do you know if your UART pins have pull up resistors? If you can, try attaching something to an unused port. -Tim