Device Drivers

USB 2.0 Isochronous driver - high speed
I am Writing a USB Isochronous driver for my device. I am using the isousb example of ddk. what is the best possible performance that can be achieved by this sample. My objective is to acheive maximum data transfer rates. without making any chnages what best can be expected from this. I know I need to do lo... 21 Apr 2006 01:37

using !devext
i want to use !devext. my box is xp pro (no service pack). but it claims that "Your debugger is not using the correct symbols " what's pci!_PCI_DEVICE ? TIA !devnode 0 1 .... DevNode 0x81fa0298 for PDO 0x81fd8a60 InstancePath is "PCI\VEN_8086&DEV_24C3&SUBSYS_24C28086&REV_02\3&13c0b0c5&0&FB" State = Devi... 19 Apr 2006 00:51

WDM or WDF?
OK, thanks for the info. I search for some WDF-Tutorial and found this: [url]http://www.codeproject.com/system/wdf_kmdf_basic.asp[/url] I think this is a good point to start. Maxim S. Shatskih wrote: *> As I try to write a driver for a PCI-Card, I'm not sure if I should do this with WDM or WDF. ... 15 Apr 2006 13:20

PCL command reference
I want to send the command to the printer by specifying whether the paper type is transparent ,bond or plain. Is there any PCL command available to do so? ... 15 Apr 2006 04:56

Blocking Devices
Ok, thanks that did work.. But i could not find why it was not working for the "...EnumDeviceInterfaces". meanwhile researching for the problem i got the way to block a device. That is ... by using the API "SetupDiSetClassInstallParams" ... but now i am able to block the device if the device is not in use currently... 13 Apr 2006 01:05

Silent Install
Hi! I've written a driver that contains a "virtual bus" and a "virtual serial port". The bus allows installation, uninstallation and enumeration of virtual serial ports. Everything is contained within the same driver. When a new virtual serial port is installed, I want the installation to proceed without user... 12 Apr 2006 13:06

USB controlling
Hi, I want to disable/enable the USB ports. So, that no one can can access that device connected with that port. I tried the CreateFile method with no SHARE rights & read/write access ... but it was not useful. Again, i found usbioctl.h header file with WINDDK there we have a flag defines like ... 12 Apr 2006 18:21

How to support Motion JPEG format in driver ?
Does intelcam.sys support Motion JPG format(ex:FCC_FORMAT_MJPG)? I can't find enough information in document. MJPG option is showed in Amcap but can not preview with MJPG format. KS_DATARANGE_VIDEO structure below Thanks for any help or hint. -SL ============================================================= ... 17 Apr 2006 01:25

SmartCard Reader Driver
Hi, I'm trying to modify the PSCR sample DDK to make a virtual PCSC driver. I removed all HW dependencies from PSCR. Now I see the Smart Card Resource Manager opening a handle to my driver, but one of the last IRPs gets cancelled due to an invalid code forwarded to SmartcardDeviceControl. I am receiving it f... 10 Apr 2006 19:58

STOP WZCSVC
Hi! I use NDISUIO to look for the SSID avaiable and setting them, but I must stop WZCSVC and I don't know how to do it. Can you illustrate me how to do it? Thanks Giulio ... 7 Apr 2006 05:18