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From: Craig McQueen <craig.mcqueen@beamcommunications.com>
To: <meta-freescale@yoctoproject.org>
Subject: CLOCAL bit for console ttyAMA0 on imx28evk with 3.14 kernel
Date: Tue, 11 Nov 2014 17:41:08 +1100	[thread overview]
Message-ID: <5461AF84.2000700@beamcommunications.com> (raw)

I'm doing a Yocto build of core-image-minimal for imx28evk with 
linux-fslc kernel provider (thus 3.14.19 kernel).

I've found that Busybox 'less' and GNU 'screen' are unresponsive when 
run from the serial debug console (ttyAMA0). E.g. 'less /etc/passwd' 
just hangs and must be stopped with Ctrl-C. 'screen' hangs and must be 
stopped with Ctrl-\.

I traced it to the serial debug console not having CLOCAL bit set. Doing 
'stty clocal' fixes it, so less and screen work normally.

I think CLOCAL should always be set for serial terminals. But I'm new to 
Yocto, and I don't know what/where is needed to change so that CLOCAL 
bit is set for the serial console. Any advice?

Regards,
Craig McQueen



             reply	other threads:[~2014-11-11  6:55 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-11  6:41 Craig McQueen [this message]
2014-11-11  7:40 ` CLOCAL bit for console ttyAMA0 on imx28evk with 3.14 kernel Nikolay Dimitrov
2014-11-11 16:05 ` Fabio Estevam
2014-11-11 16:11   ` Cary O'Brien
2014-11-11 17:42   ` Otavio Salvador
2014-11-11 17:46     ` Fabio Estevam
2014-11-11 17:53       ` Otavio Salvador
2014-11-11 23:00         ` Craig McQueen
2014-11-11 23:47           ` Otavio Salvador
2014-11-12  2:06             ` Craig McQueen
2015-01-02  7:10 ` Colin Moloney
2015-01-02 11:38   ` Otavio Salvador

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