From 5fa522d6069313f96c93c255a20ca40e2d2a6c57 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 20 Feb 2018 10:47:27 +0000 Subject: [PATCH 224/454] overlays: i2c-gpio: Explain bus numbers in README Signed-off-by: Phil Elwell --- arch/arm/boot/dts/overlays/README | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -694,7 +694,11 @@ Params: i2c_gpio_sda GPIO use (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-). If + not set, the default value is 0, but the bus + number will be dynamically assigned - probably + 3. Name: i2c-mux