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Figure out what IOCTL 0x20000 is used for #8

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nefarius opened this issue Mar 16, 2023 · 1 comment
Open

Figure out what IOCTL 0x20000 is used for #8

nefarius opened this issue Mar 16, 2023 · 1 comment

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@nefarius
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The tool USB Device Tree Viewer issues an IOCTL with the value 0x20000 to an USB Host Controller and I'd like to know what that is used for 🤔 If I hook and block it, the tool can not resolve the parent hub of the host controller, the decoded parts are even weirder:

Device Function Access Method
CD_ROM (0x2) 0x0 FILE_ANY_ACCESS METHOD_BUFFERED
@nefarius
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nefarius commented Jun 5, 2024

The dev of the tool was kind enough to report back to me and confirmed it is not coming from his code base so some other filter or app slips it in? Curious!

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@nefarius