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Android设备无法识别连接的USB

[英]Android device is not recognize attached USB

原文 2014-04-15 15:55:12 0 2 android/ usb/ ftdi/ usb-otg

I'm making application that needs to comunicate with device baseed on FTDI FT230X chip. 我正在开发需要与基于FTDI FT230X芯片的设备进行通讯的应用程序。 My applications runs fine and communicate with device perfectly. 我的应用程序运行良好，并且可以与设备完美通信。 But on some other mobile phones or tables this attached USB device is not recognized even if they have support for OTG and USBHost mode. 但是，在某些其他手机或台式机上，即使支持USB OTG和USBHost模式，也无法识别此连接的USB设备。 All testing devices are running Android 4.0 or above. 所有测试设备都运行Android 4.0或更高版本。 I'm little bit confused because I can't determine reason why on some devices works and on other doesn't. 我有点困惑，因为我无法确定在某些设备上工作而在其他设备上不工作的原因。 I have also tried on rooted with custom ROMs and the problem is the same. 我也尝试过使用自定义ROM植根，问题是相同的。 Does anybody have an idea or experience to give me some hint what to do or to try? 是否有人有想法或经验给我一些提示，该怎么做或尝试？

2 个解决方案

The Problem is at your usb device. 问题出在您的USB设备上。 Unfortunately no one could help you out with this. 不幸的是，没有人可以帮助您。 Try changing the usb on the go it works fine sometimes sometime 尝试随时随地更改USB，有时有时效果很好

It looks that FT230X is a USB->UART chip, which requires corresponding driver on the host. 看起来FT230X是USB-> UART芯片，需要主机上相应的驱动程序。 Some phones/tablets have this driver (like yours), but some don't. 有些电话/平板电脑具有此驱动程序（例如您的驱动程序），但有些则没有。