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