ez-usb 通用驱动程序源码

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1、//////////////////////////////////////////////////////////////////////////File:ezusbsys.c//$Archive:/USB/Drivers/ezusbdrv/ezusbsys.c$////Purpose://GeneralpurposeUSBdevicedriver////Environment://kernelmode////$Author:Mdn$////$History:ezusbsys.c$////**********

2、*******Version6*****************//User:MdnDate:9/17/01Time:10:54a//Updatedin$/USB/Drivers/ezusbdrv//FixedmemoryleakbuginISOstreamingcode.Wassettingthe//PendingTransfersvariabletothewrongvalueandnotproperlyfreeing//afterstoppingtheISOstream.////**************

3、***Version5*****************//User:MdnDate:10/06/00Time:10:08a//Updatedin$/USB/Drivers/ezusbdrv//AddedIOCTL_EZUSB_SET_FEATURE////*****************Version4*****************//User:MdnDate:8/17/00Time:9:46a//Updatedin$/USB/Drivers/ezusbdrv//addedagenericgetdesc

4、riptorfunction.////*****************Version3*****************//User:MdnDate:8/04/00Time:11:41a//Updatedin$/USB/Drivers/ezmon//addedsupportformonitordownloadtoFX2////*****************Version2*****************//User:MdnDate:7/21/00Time:4:27p//Updatedin$/USB/Dr

5、ivers/ezusbdrv//AddedaStartedflagtothedeviceextension.Thisflaggetssetafter//thedevicehassuccessfullyStarted.Itisusedtopreventapotential//raceconditionwhereanapplicationcouldgetahandle(with//CreateFile())beforethedeviceiscompletelyenumerated.////*************

6、****Version1*****************//User:TpmDate:6/09/00Time:6:32p//Createdin$/USB/Drivers/ezusbdrv////*****************Version42*****************//User:MdnDate:5/05/00Time:10:24a//Updatedin$/EzUsb/Drivers/ezusbdrv//comments////*****************Version41*********

7、********//User:MdnDate:4/18/00Time:2:45p//Updatedin$/EzUsb/Drivers/ezusbdrv//fixedmemoryleakwhereIwasn'tfreeinganURBallocatedfor//vendor/classrequests.////*****************Version40*****************//User:MdnDate:1/21/00Time:10:03a//Updatedin$/EzUsb/Drivers/

8、ezusbdrv//modifieddeviceremovalcodetosendanabortmessagetoallpipes//beforeprocedingwithdeviceremoval.Thissolvesthedeadlockproblem//thatcanoccurwhenatransferispendingandthedevicereceivesa//removem