ES1371 WDM driver notes Friday, October 22, 1999 David Sowa This file is included with build 26 of the ES1371 WDM driver. ************************************************************** WARNING: This driver will NOT work on Win 2000 Beta 2 or any build prior to 1891. Loading on such a build may render the machine unbootable. Microsoft changed the WDM Audio interfaces at build 1891 to make them match Win98. ************************************************************** This driver was built against Build 2092 of the Win2000 DDK and has been tested on Win2000 build 2134 and Win98 SE. This driver has passed all the tests in ACT 5.0 as downloaded from the WHQL website on 6/21/99. The test system was a Intel Atlanta motherboard (BX chipset) with a 266Mhz Pentium 2. The test were run on Windows 2000 build 2092. The tests will NOT pass on Windows 2000 Beta 3 (build 2031). INSTALLATION: ------------ Windows 2000 Use the standard device manager update driver mechanism to install the new driver. Since the driver included in the Win2000 system is signed and this newer driver is not, the system will present a dialog that tells you the existing driver is signed and asks you if you want to continue. You must select Yes to install this updated driver. Windows 98 SE There is no stock es137x dirver for Windows 98 SE so the driver should install through the standard mechanisms. If you already have VxD style drivers loaded, please use the SBSETUP program that was provided with those drivers to remove them first, and then when the machine reboots and the hardware is redetected point the install wizard at the location of the updated WDM drivers. Changes from build 25 to build 26. - The sigmatel codec pops when it loses power while it is in a low power state. Since the default WDM behavior is to put the card into D3 just before shutting down this was a problem. Now the driver detects that it will be losing power and mutes the codec instead of putting it into a low power mode. Changes from build 24 to build 25. - Added a delay to the wakeup process under Win98 to avoid having the audio stutter because the rest of the system isn't ready to provide a smooth stream of audio. Changes from build 23 to build 24. - Change the power management handler to prevent a pop when the AC97 Codec is brought out of D2. - Add default mixer settings to the INF file. Changes from build 22 to build 23. - Fix a bug in the check for the CS4297 codec. - mute volumes when the mixer slider is set to the minimum value. - Fix a bug in the handling of the stored record volume Changes from build 20 to build 22. - Fixed a bug in Japanese Win98SE where the recording controls didn't show correctly in the mixer because there is a bug in the GUID in Japanese Win98SE for the string for "Recording Controls" - Changed the major revision from 5 to 6 so the driver would load on Win2k without showing the "This driver is older than current..." dialog. This makes the current version of the driver 6.00.01.22 - Removed an extra reference to the gameport device that was keeping the driver from unloading. Changes from build 18 to build 20. - fixed Microsoft bug 4757: STRESS: System hung with ES1371 in full duplex - The CS4297A codec was not coming out of powerdown reliably on Win98SE. Changes from build 17 to build 18. - Fixed bug that kept build 17 from loading on Win98 SE systems. - Changed the AC97 init code to keep from breaking the CS4297A codec. Changes from build 16 to build 17. - Fixed Microsoft bug 4592: TopologyTimerDPCRoutine calls KsQueueWorkItem with invalid pointers - Added support for hardware designs without the MIDI/Gameport connector. - Added some Microsoft supplied code changes. Changes from build 15 to build 16. - Support added for the chips with PCI device ID 5880. Changes from build 14 to build 15. - The MIDI UART transmit was decoupled from the START/STOP of the MIDI stream. - The MIDI UART transmit queue size was changed from 0x1000 to 0x10. - Fixed a C syntax bug in the MIDI queue handlers. - Worked around a bug in the Microsoft MIDI stream portclass driver. - Changed the way buffer position is handled for wave record. - Fixed a hanging flag bug in the routine that handles the DMA channel state. Changes from build 11 to build 14. - change some default mixer settings to give better startup values. (MS bug 4164) - added basic support for the LINEOUT_VOL mixer control. - mixer settings are now saved to the registry via a timer callback. - boundry condition check on the wavein mux setting. (MS bug 4172) - changed driver name to es1371mp.sys to sync with Microsoft. - added Win2000 joystick port handlers. Changes from build 10 to build 11. Bugs: - Fixed Microsoft Bug 3803 by changing the component type of the AUX input from Line Level to Analog. - Made the Recording destination in the mixer show up correctly in the Win98 Mixer app. Changes from build 7 to build 10. Features: - Changed driver name to Sound Blaster PCI driver (sbpci.sys) - Topology (mixer settings) is now saved to the registry and restored at system startup. - Initial Topology settings have been changed to Microsoft's desired settings. The master volume has been lowered, and the line in is muted. - Added Joystick support. Bugs: - Fixed pause bug in wave playback. - Fixed Mic Boost control. - Fixed various power management bugs.Download Driver Pack
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