The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/mux/adi,adgs1408.txt

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    1 Bindings for Analog Devices ADGS1408/1409 8:1/Dual 4:1 Mux
    2 
    3 Required properties:
    4 - compatible : Should be one of
    5         * "adi,adgs1408"
    6         * "adi,adgs1409"
    7 * Standard mux-controller bindings as described in mux-controller.yaml
    8 
    9 Optional properties for ADGS1408/1409:
   10 - gpio-controller : if present, #gpio-cells is required.
   11 - #gpio-cells : should be <2>
   12                         - First cell is the GPO line number, i.e. 0 to 3
   13                         for ADGS1408 and 0 to 4 for ADGS1409
   14                         - Second cell is used to specify active high (0)
   15                         or active low (1)
   16 
   17 Optional properties:
   18 - idle-state : if present, the state that the mux controller will have
   19   when idle. The special state MUX_IDLE_AS_IS is the default and
   20   MUX_IDLE_DISCONNECT is also supported.
   21 
   22 States 0 through 7 correspond to signals S1 through S8 in the datasheet.
   23 For ADGS1409 only states 0 to 3 are available.
   24 
   25 Example:
   26 
   27         /*
   28          * One mux controller.
   29          * Mux state set to idle as is (no idle-state declared)
   30          */
   31         &spi0 {
   32                 mux: mux-controller@0 {
   33                         compatible = "adi,adgs1408";
   34                         reg = <0>;
   35                         spi-max-frequency = <1000000>;
   36                         #mux-control-cells = <0>;
   37                 };
   38         }
   39 
   40         adc-mux {
   41                 compatible = "io-channel-mux";
   42                 io-channels = <&adc 1>;
   43                 io-channel-names = "parent";
   44                 mux-controls = <&mux>;
   45 
   46                 channels = "out_a0", "out_a1", "test0", "test1",
   47                         "out_b0", "out_b1", "testb0", "testb1";
   48         };

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