add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/drivers/misc/echo/Kconfig
..
..
@@ -1,7 +1,7 @@
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+# SPDX-License-Identifier: GPL-2.0-only
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 config ECHO
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 	tristate "Line Echo Canceller support"
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-	default n
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-	---help---
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+	help
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 	  This driver provides line echo cancelling support for mISDN and
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 	  Zaptel drivers.
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