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Only IOS_OPEN, IOS_CLOSE, IOS_IOCTL and IOS_IOCTLV are valid commands. The other commands immediately return IPC_EINVAL (-4).
Only IOS_OPEN, IOS_CLOSE, IOS_IOCTL and IOS_IOCTLV are valid commands. The other commands immediately return IPC_EINVAL (-4).
Note: The device needs to be "resumed" (<code>ioctl 0x10</code> SuspendResume) before data can be sent/received, or even before <code>ioctl 3</code> GetDeviceInfo can be used (at least for <code>/dev/usb/hid</code>).
== Handles ==
== Handles ==