配置USB OTG为Gadget serial device
现需要将OKA40i-C板子上的OTG下载口配置为虚拟串口,实现usb串行通信,利用linux已存在的usb转虚拟串口驱动:USB Gadget Drivers (Serial Gadget (With CDC ACMand CDC OBEX 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
进行配置,同时去除了之前存在的usb转四串口的驱动:
XR21V1414 USB Serial four 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**att5dC2Jj72jmO01Vsjyf4xdxEen8WZPTyzccWy8WIFMZZUOLdD1a6hu7qO6qY0rtzJY5Z3MzrtNlBtF5MFIR2MXqfmtJNTq6DQO8VzTQcJoeFPkw0SONI1jBb202oewmQx0dKqpblGSU1CJe0gsC381TTQR9DQvhjAbjLS09FOvMtBvEV5nHynRuVKuXoStBaBIhSwWR07P7eAveHoil7wnncMFfTRbB7GbRGi8n6oWJVl5FewSBoQICXvI+OR8DZGNZoafjfBi2ERrVTV+oXJpm4a0Od0nmZ2PWsjstWERetanpbGll9JmNfVdGgoTCvDeHyOF1kc9PZuRgdoSdr7rnt5UC8mfdU+E>**tuc2OW/tJq/0Gs2ETT0xf8NSwFWOLD0mPz+G29zHzxJ6oA/mE5yqp05gxmEXITeQ8zGh6+8jOqGDfyXg+EsnsPZkcT++i0WCTNqRbrEJoVgxaDZWlIq+heKtCFjF5NpwrI6HPInk5VrMFvdGMVrosGE1aigor8TiUjqdcSZ3Wgrm/jWvXUqVy4Fn+aXg8aqfRbEGj6uGnGzmEKpSUDAxibmrg6sV45kiH2Mr4+FAhkR0GNHYrVUlFeIdlsC++k54RCy2NzezbJ5RSxuKwQu7UDKAdMlGRVc7uEFchzUQvdbIchVUmCgy+jeuhROU4VskkFne7g0cmk4Hm5gaCDsU7qkelsKXjIOf33BPZermOcoOJAa2KK+dS+ETkTtyiWRlexqUqA1qjBYPFhtVuw2YXMjKj16mIisljvafjtIZZ4txQ6WzOaObszuFqcR/aZyaKcirY5RclWaJvY4gJ0Ft7u4Ho7kEG+3pIj1JMCG8KHgg9WxykYNedemLrtfRa7Eh6MaChNL+aw2eTWSUqCqUy/wS+uFjB/SoN3Wa7pENWsU3DYKC5sp6LVxJZLFVvJrP1UQ/VfRYGlQ2cv5bEvF2/PTcuNqcfSe1GOWymsbaB4FCHZzWZF4IWsd9q6+VK7pT1024QYXEnQFc1cikinfX+0dIBCAL0vopUUttvwdJdT/gVR3hzsl64eDTHJ4nvbtWR0GqQQN8u9MJiorergwsXUlk1egLPL+vZbO9EtlyqJLpRS7fBIm1DkOaryUhnSwePI/PYsU/sjRRHlTkiNseT2ynoMqKz2LDb7VitVvpb23l4I5mVAvRE9WZEMyntFka0HcRE/jLoSWtLcBqeka3kdpsk4LPZzPR2dhBxI4PVIux9IIuQxE5KlCapME1vMDNgtKAzmOiub+B6RKIUahdtiWuuVyzrzpdzs0xDj8nG4JAAai1VxZV4C4P7V0HP0c4cP5G26KTJLOaeg1bpJKHaFm7fz+HrELlUKSs8+0VheYRm69Ea9CirHTk9sU1gShkKw8grljXhZUSU9NNjtEkVlUa9hqLcCtyC5dIYRYRr3u4M9qd202gbwqhUkng/jU/FGbVO41mkBZYEp7Hrx1oiq9R0iH29NseaatbrKEstwPuATMovShWm2Tp0Rj09VcXvfnhzKub9mfdExePCgLtsO3WJPVfDOXD9LAeunmf3mRtsDn7k3NwbwwLfBNYezmD**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但是重新编译打包之后,烧写到板子上,用usb线连接pc电脑,电脑不识别usb-gadget serial设备,说明我这个驱动未在板子上加载成功。我在另外的平台这样操作过此驱动,是成功的,插上电脑会指示data:image/png;base64,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。此功能是否有解决方法?我是哪里还需要配置吗?急望指教,多谢! 有加调试信息吗,开发板启动运行时加载驱动了吗,能定位是哪的问题吗 您说的调试信息是什么?
我使用的kernel内核内现成的驱动,就直接menuconfig打上去了:选择了支持OTG,CDC/ACM,generic SerialDriver
启动的时候我在启动信息里没有看到加载这个相关的信息,板子起来后我进# ls /sys/bus/usb/drivers/
GobiNet cdc_ncm usb-storage uvcvideo
asix cdc_subset usbfs zaurus
ax88179_178a hub usbhid
cdc_acm net1080 usbserial
cdc_ether usb usbserial_generic
看到是有了cdc_acm ,usbserial这些,同时进/dev目录,可以看到设备ttyGS0,但是这个是无法使用,不然插上pc可以检测到设备,有什么方法可以定位问题解决吗? 有这些节点说明驱动加载成功了,无法使用可以查查硬件或者看看兼容性等其他内容,具体哪有问题我这边没试过,不好确定 本帖最后由 海东 于 2021-7-9 16:37 编辑
zhichao 发表于 2021-7-9 14:39
有这些节点说明驱动加载成功了,无法使用可以查查硬件或者看看兼容性等其他内容,具体哪有问题我这边没试过 ...我使用静态加载和动态加载都试过此驱动加载,静态加载完再次启动未打印相关信息,于是我用动态insmod加载,加载都可以没有报错误,但是仍然无法驱动此usb虚拟串口。
驱动加载之后,我在其他平台测试是可以在pc上看到虚拟串口COM出来,但是A40i却不行。
设备节点有:/dev/ttyGS0
硬件确认是没有问题的,因为usb这个脚下载都是可以的。
您说的兼容性是什么意思?兼容性应该从哪些方面入手查找,望指教,感谢
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