# modinfo ntc_thermistor.ko
filename:       /root/ntc_thermistor/ntc_thermistor.ko
alias:          platform:ntc-thermistor
license:        GPL
author:         MyungJoo Ham <myungjoo.ham@samsung.com>
description:    NTC Thermistor Driver
srcversion:     DBAD01E8C409F3A3514FAD2
depends:
vermagic:       3.8.13-35-ARCH SMP mod_unload modversions ARMv7 p2v8

#lsmod
Module                  Size  Used by
ntc_thermistor          4075  0
omap_rng                4599  0
autofs4                21976  2

/dts-v1/;
/plugin/;

/ {
    compatible = "ti,beaglebone", "ti,beaglebone-black";

    /* identification */
    part-number = "BB-NTC";
    version = "00A0";

    /* state the resources this cape uses */
    exclusive-use =
        /* the pin header uses */
        "P9.39",    /* AIN0 */
        "P9.40",    /* AIN1 */
        "P9.37",    /* AIN2 */
        "P9.38",    /* AIN3 */
        "P9.33",    /* AIN4 */
        "P9.36",    /* AIN5 */
        "P9.35",    /* AIN6 */
        /* the hardware IP uses */
        "tscadc";

    fragment@0 {
        target = <&ocp>;
        __overlay__ {
            /* avoid stupid warning */
            #address-cells = <1>;
            #size-cells = <1>;

            tscadc {
                compatible = "ti,ti-tscadc";
                reg = <0x44e0d000 0x1000>;

                interrupt-parent = <&intc>;
                interrupts = <16>;
                ti,hwmods = "adc_tsc";
                status = "okay";

                adc {
                    ti,adc-channels = <0 1 2 3 4 5 6 7>;
                };

            };

            ntc@0 {
                compatible = "ntc,ncp15wb473";
                pullup-uv = <1800000>;
                pullup-ohm = <0>;
                pulldown-ohm = <12000>;
                io-channels = <&tscadc 0>;
            };

            test_helper: helper {
                compatible = "bone-iio-helper";
                vsense-name  = "AIN0", "AIN1", "AIN2", "AIN3", "AIN4", "AIN5", "AIN6", "AIN7";
                vsense-scale = <100     100     100     100     100     100     100     100>;
                status = "okay";
            };
        };
    };
};

#dmesg
[  102.513840] bone-capemgr bone_capemgr.9: part_number 'BB-NTC', version 'N/A'
[  102.514030] bone-capemgr bone_capemgr.9: slot #10: generic override
[  102.514081] bone-capemgr bone_capemgr.9: bone: Using override eeprom data at slot 10
[  102.514134] bone-capemgr bone_capemgr.9: slot #10: 'Override Board Name,00A0,Override Manuf,BB-NTC'
[  102.514409] bone-capemgr bone_capemgr.9: slot #10: Requesting part number/version based 'BB-NTC-00A0.dtbo
[  102.514463] bone-capemgr bone_capemgr.9: slot #10: Requesting firmware 'BB-NTC-00A0.dtbo' for board-name 'Override Board Name', version '00A0'
[  102.521859] bone-capemgr bone_capemgr.9: slot #10: dtbo 'BB-NTC-00A0.dtbo' loaded; converting to live tree
[  102.525143] bone-capemgr bone_capemgr.9: slot #10: #1 overlays
[  102.551219] bone-iio-helper helper.16: ready
[  102.551443] bone-capemgr bone_capemgr.9: slot #10: Applied #1 overlays.