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  • 如何查看gpio 使用状态,以及被那些模块request

    mkdir /data/debug


    mount -t debugfs debugfs /data/debug


    255|root@msm8610_t530_ee7736:/data/debug # cat gpio
    cat gpio
    GPIOs 0-101, platform/fd510000.gpio, msmgpio:
     gpio-0   (rmi4_reset_gpio     ) out hi
     gpio-1   (rmi4_irq_gpio       ) in  hi
     gpio-6   (pw_pwr              ) out lo
     gpio-7   (nfc_ven             ) out lo
     gpio-8   (reset               ) out hi
     gpio-18  (FLASH_EN            ) in  lo
     gpio-19  (FLASH_NOW           ) in  lo
     gpio-23  (wcnss_wlan          ) in  lo
     gpio-24  (wcnss_wlan          ) in  lo
     gpio-25  (wcnss_wlan          ) in  lo
     gpio-26  (wcnss_wlan          ) in  lo
     gpio-27  (wcnss_wlan          ) in  lo
     gpio-41  (disp_rst_n          ) in  hi
     gpio-42  (sm_sdcc.2 cd       ) in  lo
     gpio-56  (BD_EN               ) in  lo
     gpio-60  (BD_UART_EN          ) in  lo
     gpio-72  (volume_up           ) in  hi
     gpio-74  (camera_focus        ) in  hi
     gpio-75  (nfc_firm            ) out lo
     gpio-80  (ltr558              ) in  hi
     gpio-83  (volume_down         ) in  hi
     gpio-96  (nfc_irq             ) in  lo


    GPIOs 570-571, spmi/qpnp-pin-f4108a00, pm8110-mpp:


    GPIOs 572-575, spmi/qpnp-pin-f4108800, pm8110-gpio:


    GPIOs 576-607, platform/qcom,smp2pgpio-ssr-smp2p-4-out.25, master-kernel:


    GPIOs 608-639, platform/qcom,smp2pgpio-ssr-smp2p-4-in.24, slave-kernel:


    GPIOs 640-671, platform/qcom,smp2pgpio-smp2p-4-out.23, smp2p:


    GPIOs 672-703, platform/qcom,smp2pgpio-smp2p-4-in.21, smp2p:


    GPIOs 704-735, platform/qcom,smp2pgpio-ssr-smp2p-2-out.20, master-kernel:


    GPIOs 736-767, platform/qcom,smp2pgpio-ssr-smp2p-2-in.19, slave-kernel:


    GPIOs 768-799, platform/qcom,smp2pgpio-smp2p-2-out.17, smp2p:


    GPIOs 800-831, platform/qcom,smp2pgpio-smp2p-2-in.15, smp2p:


    GPIOs 832-863, platform/qcom,smp2pgpio-ssr-smp2p-1-out.14, master-kernel:


    GPIOs 864-895, platform/qcom,smp2pgpio-ssr-smp2p-1-in.13, slave-kernel:


    GPIOs 896-927, platform/qcom,smp2pgpio-smp2p-1-out.11, smp2p:


    GPIOs 928-959, platform/qcom,smp2pgpio-smp2p-1-in.9, smp2p:


    GPIOs 960-991, platform/qcom,smp2pgpio-smp2p-7-out.7, smp2p:

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  • 原文地址:https://www.cnblogs.com/yuzaipiaofei/p/4124100.html
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