1ec8f24b7SThomas Gleixner# SPDX-License-Identifier: GPL-2.0-only 26e2055a9SGreg Kroah-Hartmanconfig ECHO 36e2055a9SGreg Kroah-Hartman tristate "Line Echo Canceller support" 4a7f7f624SMasahiro Yamada help 56e2055a9SGreg Kroah-Hartman This driver provides line echo cancelling support for mISDN and 66e2055a9SGreg Kroah-Hartman Zaptel drivers. 76e2055a9SGreg Kroah-Hartman 86e2055a9SGreg Kroah-Hartman To compile this driver as a module, choose M here. The module 96e2055a9SGreg Kroah-Hartman will be called echo. 10