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  Message 1 of 2  
07 Aug 17 05:27
Marshall Cai
xxxxxx@hotmail.com
Join Date: 22 Dec 2010
Posts To This List: 212
UMDF can be lower filter of USB device

Hi, I have one question regarding to the UMDF driver for USB Device. The USB device has an USB INput device and HID device. I used to write a KMDF lower filter driver of the USB Input device and it works fine until now. However, can I do the same thing using the UMDF? Thanks, Marshall
  Message 2 of 2  
07 Aug 17 11:07
Doron Holan
xxxxxx@microsoft.com
Join Date: 08 Sep 2005
Posts To This List: 10066
UMDF can be lower filter of USB device

No, you can't have a lower filter umdf driver below a km stack Bent from my phone ________________________________ From: xxxxx@lists.osr.com <xxxxx@lists.osr.com> on behalf of xxxxx@hotmail.com xxxxx@lists.osr.com <xxxxx@hotmail.com xxxxx@lists.osr.com> Sent: Monday, August 7, 2017 2:26:46 AM To: Windows System Software Devs Interest List Subject: [ntdev] UMDF can be lower filter of USB device Hi, I have one question regarding to the UMDF driver for USB Device. The USB device has an USB INput device and HID device. I used to write a KMDF lower filter driver of the USB Input device and it works fine until now. However, can I do the same thing using the UMDF? Thanks, Marshall --- NTDEV is sponsored by OSR Visit the list online at: <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.osronline.co m%2Fshowlists.cfm%3Flist%3Dntdev&data=02%7C01%7CDoron.Holan%40microsoft.com%7C925 ad25b00b943a0c84b08d4dd76829e%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636376 948446798756&sdata=MDoUkAkimFKcqbH7t9gG5AiBOHbg1j1sewfqAEkGrxE%3D&reserved=0> MONTHLY seminars on crash dump analysis, WDF, Windows internals and software drivers! Details at <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.osr.com%2Fse minars&data=02%7C01%7CDoron.Holan%40microsoft.com%7C925ad25b00b943a0c84b08d4dd768 29e%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636376948446798756&sdata=26lnDLy KSO4%2BKkEsxDb9ILbYssBx7UbLFxql9mkP9pE%3D&reserved=0> To unsubscribe, visit the List Server section of OSR Online at <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.osronline.co m%2Fpage.cfm%3Fname%3DListServer&data=02%7C01%7CDoron.Holan%40microsoft.com%7C925 ad25b00b943a0c84b08d4dd76829e%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636376 948446798756&sdata=vY%2BTCogzM23WPpraWKF7nFg9nleOI3XamBX4M3P5fw8%3D&reserved=0> --
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