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Commit b214f11f authored by Janusz Krzysztofik's avatar Janusz Krzysztofik Committed by Mark Brown
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ASoC: Amstrad Delta: add info about the line discipline requirement to Kconfig help text 



I thought it could be usefull to add some information on how to get the device
fully supported by loading a line discipline on the modem line.

Signed-off-by: default avatarJanusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 02a06d30

sound/soc/omap/Kconfig

+12 −1
Original line number Diff line number Diff line
@@ -21,7 +21,18 @@ config SND_OMAP_SOC_AMS_DELTA 
	select SND_OMAP_SOC_MCBSP

	select SND_SOC_CX20442

	help

	  Say Y if you want to add support for SoC audio on Amstrad Delta.

	  Say Y  if you want to add support  for SoC audio device  connected to

	  a handset and a speakerphone found on Amstrad E3 (Delta) videophone.



	  Note that in order to get those devices fully supported,  you have to

	  build  the kernel  with  standard  serial port  driver  included  and

	  configured for at least 4 ports.  Then, from userspace, you must load

	  a line discipline #19 on the modem (ttyS3) serial line.  The simplest

	  way to achieve this is to install util-linux-ng  and use the included

	  ldattach  utility.  This  can be  started  automatically  from  udev,

	  a simple rule like this one should do the trick (it does for me):

	  	ACTION=="add", KERNEL=="controlC0", \

				RUN+="/usr/sbin/ldattach 19 /dev/ttyS3"



config SND_OMAP_SOC_OSK5912

	tristate "SoC Audio support for omap osk5912"