文件列表:

qcusbser.pdb (363520, 2008-01-15)
qcusbser.sys (279680, 2008-01-15)
logreader.exe (36864, 2007-07-17)
msmdm.inf (45530, 2007-07-17)
qcmdm.inf (47505, 2007-07-17)
qcser.inf (8266, 2007-07-17)
qcusb.inf (1378, 2007-07-17)

Qualcomm USB Host Driver version 2.0.4.0 for Windows 2000/XP/Server 2003 This readme covers important information regarding Qualcomm USB Host Driver version 2.0.4.0 for Windows 2000, Windows XP and Windows Server 2003. Table of Contents 1. Installation Notes 2. Major Features 3. What's New in This Release 4. Known issues 5. Build Information ---------------------------------------------------------------------- 1. INSTALLATION NOTES Please refer to Qualcomm document 80-V4609-1 Rev J for detailed instructions on driver installation. The aforesaid document is encloded in the driver package. ---------------------------------------------------------------------- 2. MAJOR FEATURES 1) Major bug fixes for operations under Windows XP, backward compatible with Windows 2000. Support ***-bit Windows. 2) Introduced new solution to the Windows open handle issue. The solution makes the USB virtual/PNP COM port's behavior similar to that of a physical COM port when device is reset or disconnected. 3) The driver is re-designed to be reentrant, which may allow multiple device connections on Windows XP over a single USB hub. Please note, multiple connections on Windows 2000 or through multiple USB hubs on Windows XP may cause system crash unless the devices completely remove their USB serial number string from the USB descriptor. 4) Vitually eliminated use of global cancel spin lock. This not only boosts the performance of the whole system but also makes the current driver much faster from one USB transfer to another, thus makes short packet handling more efficient. 5) The driver is designed to be running safe with Intel Hyper-Threading processor and multi-processor systems with Windows XP, and multi-processor systems with Windows 2000. 6) Added true resident mode to the driver. Users can configure the driver to be a true resident driver instead of a PNP driver at run-time via registry settings. This feature itend to provide the ultimate solution to all the issues caused by device reset/disconnection. Under the true-resident mode, the driver will maintain its virtual(PNP) COM port(s) at all times and thus try to make the virtual(PNP) COM port behave as same as a traditional/physical COM port when the device is disconnected or reset. For details, please refer to section 9.4.2 in Qualcomm document 80-V4609-1 Rev J. By default, the driver operates under PNP mode. ---------------------------------------------------------------------- 3. What's New in This Release 1) Corrected implementation for enqueuing power IRP's in order. 2) Fixed bug that the device might not start properly when processing IRP_MN_CANCEL_STOP/REMOVE_DEVICE. 3) Fixed the bug that driver might lose track of write IRP's during flow control operation, resulting in dial-up network hang during disconnection. ---------------------------------------------------------------------- 4. KNOWN ISSUES: It's been observed that the Qualcomm USB driver could trigger bugs in older versions of McAfee mini-firewall driver mvstd5x.sys. McAfee has suggested that users obtain McAfee VirusScan patch 14 or later patches for bug fixes. Compilation flag QCSER_TARGET_XP should NOT be defined with this version due to unsolved issues with XP-specific function calls. Rarely, when the modem connection is up but the device is reset or disconnected/ re-connected, modem application may not be able to talk to modem port. A workaround is to perform a second reset or re-connection of the device. It's also recommended that users obtain Mirosoft hotfix Q822112 to reduce the possibility of this problem. This problem is fixed in Windows XP SP2. ---------------------------------------------------------------------- 5. BUILD INFORMATION: The following compilation flags are defined for customers to build the driver to debug various issues related to host and device, they are not recommended for other purposes. ENABLE_LOGGING QCSER_ENABLE_LOG_REC QCSER_DBGPRINT QCSER_DBGPRINT2 QCSER_TARGET_XP IMPORTANT!!! To achieve best security and performance, all of the above features should be turned off for commercial distributions. The free build binaries are recommended for commercial distributions. ---------------------------------------------------------------------- Copyright (c) 2003-2007 QUALCOMM Incorporated All rights reserved.

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