readme.txt

来自「wince下的串口驱动源码」· 文本 代码 · 共 18 行

This driver can be used to support any number of bus attached (non-PCMCIA) 16X50 
serial UARTS.  It uses the new serial DDSI interface which was defined for the 
version 3.0 release of windows CE.

Changes required to older drivers in order to work with the new DDSI include :

1) GetSerialObject no longer returns a PSERIAL_OBJECT.  Instead, it is passed
   the DeviceArrayIndex, and subsequently returns a single PHWObj which 
   corresponds to that index.  Typically, the deviceArrayIndex is used to select 
   from a variety of device classes, but will not necesarrily vary for different
   instances of the same device type.  For example, this particular driver 
   supports only 16x50 serial ports and therefor does not require a 
   DeviceArrayIndex.
2) HWInit now gets a thrid parameter, PHWOBJ.  This is the pointer that was
   returned from GetSerialObject.  Some drivers may not need this.  Drivers
   which dynamically allocate HWOBJs will need to store it away so that they
   can free the structure in HWDeinit.