What is Device driver?

Answer Posted / bijosh

Device Driver is a software abstraction to the under lying
hardware, which allows an application programmer to access
the device with out knowing the complexities of the hardware.

In windows CE a device driver is a part of BSP.

There are two types of drivers in Windows CE.

1. Native Device Drivers (Loaded and managed by GWES.exe)
2. Stream Device Drivers (Loaded and managed by the
device
manager), which exposes a set of functions called
stream device interface. The interfaces gives a file
like view for the device.

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