I'm still having this issue on build Windows 10 (x64 Pro) 10240 using the SP2309W monitor's built-in usb webcam/mic.

Download Dell Monitor SP2309WFP Drivers for Windows 7, 8.1, 10, Just update Dell Monitor SP2309WFP drivers for your device now! This article provides the information on 'Display Drivers in Windows 10'. Display Drivers. In previous versions of Windows, select Dell displays had a specific driver for the display in addition to the graphics adapter (Video Card) driver.

The BSOD error that occurs when plugging the USB in is: SYSTEM_SERVICE_EXCEPTION (ks.sys). If I plug the usb into a different USB port (for the first time), however, everything works perfectly fine - the webcam shows up and microphone works great, so I presume the device isn't completely unsupported or SOL. But if you then restart the computer you get a BSOD upon startup with the same message as above.

Looking at the minidumps, I get this information (a few crashes posted):

This was probably caused by the following module: ks.sys (ks+0x17C0)
Bugcheck code: 0x3B (0xC0000005, 0xFFFFF80042BB17C0, 0xFFFFD00146C89D40, 0x0)

Bugcheck code: 0x3B (0xC0000005, 0xFFFFF801312917C0, 0xFFFFD0008A7E5D40, 0x0)

Bugcheck code: 0x3B (0xC0000005, 0xFFFFF8000DEC17C0, 0xFFFFD00197918D40, 0x0)

Bugcheck code: 0x3B (0xC0000005, 0xFFFFF801AF8317C0, 0xFFFFD0019AA61D40, 0x0)

Dell Inspiron Drivers Windows 8.1

Not sure if that means anything to anyone, but it'd be awesome if this was fixed!