driver works on WinXP 32-bit but not Win7 64-bit

NTDEV
1

Hello all,
My SDIO-based driver works well on a Windows XP 32-bit, transporting messages to and from the device. However, it consistently corrupts messages to the device on a Windows 7 64-bit (HP EliteBook 8460w). The messages are sent through sdbus.sys API calls.
Any ideas on how to approach this problem will be appreciated!
Thanks!
Rachel

2

Well as a first step be sure the driver is PreFast clean (turning on all
warnings) and compile the driver with /Wp64 to catch any 64-bit versus
32-bit errors.

Don Burn
Windows Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr

“Michelson Rachel-CRK007” wrote
in message news:xxxxx@ntdev:

> Hello all,
> My SDIO-based driver works well on a Windows XP 32-bit, transporting messages to and from the device. However, it consistently corrupts messages to the device on a Windows 7 64-bit (HP EliteBook 8460w). The messages are sent through sdbus.sys API calls.
> Any ideas on how to approach this problem will be appreciated!
> Thanks!
> Rachel