hexdump命令查看Android设备里的设备树的值：

设备树dts文件中：

        qcom,model = "kalama-qrd-snd-card";
        qcom,msm-mi2s-master = <1>, <1>, <1>, <0>, <1>, <1>, <1>;
        qcom,tdm-max-slots = <8>;
        qcom,upd_lpass_reg_addr = <0x00000418 0x33B0300>;
        qcom,upd_ear_pa_reg_addr = <0x300A>;

查看/proc/device-tree中设备树节点属性的值：

$ adb root

$ adb shell cat /proc/device-tree/soc/spf_core_platform/sound/qcom,model
kalama-qrd-snd-card

$ adb shell cat /proc/device-tree/soc/spf_core_platform/sound/qcom,model | hexdump -C
00000000  6b 61 6c 61 6d 61 2d 71  72 64 2d 73 6e 64 2d 63  |kalama-qrd-snd-c|
00000010  61 72 64 00                                       |ard.|
00000014

$ adb shell cat /proc/device-tree/soc/spf_core_platform/sound/qcom,model | hexdump -c
0000000   k   a   l   a   m   a   -   q   r   d   -   s   n   d   -   c
0000010   a   r   d  \0                                                
0000014

$ adb shell cat /proc/device-tree/soc/spf_core_platform/sound/qcom,msm-mi2s-master | hexdump -vC
00000000  00 00 00 01 00 00 00 01  00 00 00 01 00 00 00 00  |................|
00000010  00 00 00 01 00 00 00 01  00 00 00 01              |............|
0000001c

$ adb shell cat /proc/device-tree/soc/spf_core_platform/sound/qcom,tdm-max-slots | hexdump -vC
00000000  00 00 00 08                                       |....|
00000004
$ adb shell cat /proc/device-tree/soc/spf_core_platform/sound/qcom,upd_ear_pa_reg_addr | hexdump -vC
00000000  00 00 30 0a                                       |..0.|
00000004
$ adb shell cat /proc/device-tree/soc/spf_core_platform/sound/qcom,upd_lpass_reg_addr  | hexdump -vC
00000000  00 00 04 18 03 3b 03 00                           |.....;..|
00000008