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openmptcprouter/root/target/linux/brcm2708/patches-4.14/0243-overlays-i2c-gpio-Explain-bus-numbers-in-README.patch

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2018-03-23 20:58:08 +00:00
From 1ae0a48bfaf4bb4a04782c1082f94a7e457376fb Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 20 Feb 2018 10:47:27 +0000
Subject: [PATCH 243/277] overlays: i2c-gpio: Explain bus numbers in README
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
arch/arm/boot/dts/overlays/README | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
index b066b19d2661..be63795ad5ef 100644
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -694,7 +694,11 @@ Params: i2c_gpio_sda GPIO used for I2C data (default "23")
(default "2" = ~100kHz)
bus Set to a unique, non-zero value if wanting
- multiple i2c-gpio busses (default "0")
+ multiple i2c-gpio busses. If set, will be used
+ as the preferred bus number (/dev/i2c-<n>). If
+ not set, the default value is 0, but the bus
+ number will be dynamically assigned - probably
+ 3.
Name: i2c-mux
--
2.16.1