买了tinny4412的开发板，我想用板子的gpio， 这个板子外接的gpio我用驱动测了 除去两个电源两个地引脚，共有26个gpio引脚，但只有两个能用。
现在我详细说一下情况：(1).其中xeint26-29是用于按键的 现在我把drivers->char->tinny4412_buttons.o的加载项去掉了，但还是显示被占用。请解释下!
                                            (2).看手册说前面20个引脚是sdio接口，比如我想用3 4 5 6 四个引脚，我在make menuconfig 里面把wireless去掉了 gpio还是不好使；然后在MMC/SD/SDIO里面不知道删掉哪个。请解释下！
gpio电路图

虽然楼主的贴是14年的，但我不是要回一个贴，我现在也在折腾TINY4412的GPIO口问题，不得其解。

如果恰好楼主回来看贴，看到我的回帖，麻烦加我QQ:259571099，向您请教GPIO的问题，谢谢。

近期也在尝试tiny4412ADK型号开发板用gpio接口外接led灯，通过gpio接口控制led灯，但不知道具体的gpio接口内核编号，目前只能按照手册上通过gpio接口点亮led1-4灯，如果哪个前辈懂得，给点意见。谢谢！

This is a classic embedded development head-scratcher! It sounds like you're diving deep into the hardware, and those GPIO conflicts can be a real pain. It's interesting that even after removing the tinny4412_buttons.o module, those pins still appear occupied. That often points to something lower-level claiming them, maybe in the device tree or a very early boot stage. And the SDIO interface sharing pins with general-purpose GPIOs is a common challenge, requiring careful configuration to ensure you're not fighting with built-in functionalities. If you're looking for a way to untangle these kinds of complex hardware issues, sometimes it feels like you need to conquer a steep Slope Unblocked of technical documentation! Best of luck in getting those GPIOs tamed!