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-rw-r--r--drivers/isdn/mISDN/Kconfig18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/isdn/mISDN/Kconfig b/drivers/isdn/mISDN/Kconfig
index 231bd0d0831..6a97e86e7f2 100644
--- a/drivers/isdn/mISDN/Kconfig
+++ b/drivers/isdn/mISDN/Kconfig
@@ -7,3 +7,21 @@ menuconfig MISDN
help
Enable support for the modular ISDN driver.
+if MISDN != n
+
+config MISDN_DSP
+ tristate "Digital Audio Processing of transparent data"
+ depends on MISDN
+ help
+ Enable support for digital audio processing capability.
+ This module may be used for special applications that require
+ cross connecting of bchannels, conferencing, dtmf decoding
+ echo cancelation, tone generation, and Blowfish encryption and
+ decryption.
+ It may use hardware features if available.
+ E.g. it is required for PBX4Linux. Go to http://isdn.eversberg.eu
+ and get more informations about this module and it's usage.
+ If unsure, say 'N'.
+
+ source "drivers/isdn/hardware/mISDN/Kconfig"
+endif #MISDN