android-usb

Android usb host api and USB storage

由 旧时模样 提交于 2019-11-27 02:22:01
I am trying to use the android host api for USB storage. I have many doubts regarding same. What all things are possible using host api. I want to see the content of USB and if possible so the normal file operation. I didnt find any documentation help regarding this. I am able to claimInterface using UsbDeviceConnection class API but I'm unable to understand how the bulkTransfer works so if anyone can guide me or give some reference I will try myself. I tried reading the USB specification also, I understood how bulkTransfer works at USB level but unable to relate how android/java file

Bypass android usb host permission confirmation dialog on Android 9

由 一曲冷凌霜 提交于 2019-11-26 21:30:29
问题 Before Android 9 I could bypass android usb host permission confirmation dialog by using root, systemizing my app and using next usb classes https://stackoverflow.com/a/15378118/7767664 https://stackoverflow.com/a/19681849/7767664 But it doesn't work for newest Android version - 9 It throws java.lang.NoSuchMethodError: No interface method grantDevicePermission(Landroid/hardware/usb/UsbDevice;I)V in class Landroid/hardware/usb/IUsbManager; or its super classes (declaration of 'android.hardware

Android usb host api and USB storage

由 三世轮回 提交于 2019-11-26 10:00:17
问题 I am trying to use the android host api for USB storage. I have many doubts regarding same. What all things are possible using host api. I want to see the content of USB and if possible so the normal file operation. I didnt find any documentation help regarding this. I am able to claimInterface using UsbDeviceConnection class API but I\'m unable to understand how the bulkTransfer works so if anyone can guide me or give some reference I will try myself. I tried reading the USB specification
订阅 android-usb