Structure of WinCE Stream Driver

WinCE stream driver specifies a sort of drivers, that IO according to the mode of stream. In fact, only the driver interfaces are alike stream operations. For instance, stream operation has the following interfaces: CreateFile, ReadFile, WriteFile, seek. And for WinCE:

Xxx_init

Xxx_open

Xxx_read

Xxx_write

Xxx_seek

Xxx_iocontrol

Xxx_close

For WinCE driver that already has the above interfaces, while using CreateFile (“XXX1:”) to open the device handle or WriteFile() to send data to device or ReadFile() to read out from device, the operating system will automatically invoke the responding interfaces from the driver.

CreateFile("xxx1:") -> xxx_open

WriteFile() -> xxx_write

ReadFile() -> xxx_read