USB stack

[Vasanthavalli Chandran]

I am planning to develop the USB 2.0 stack on windows XP/Vista, Which is the
right development environment for this WDM or WDF?

[Doron Holan [MSFT]]

ar eyou planning on developing a device driver for a usb device plugged
/into/ a usb 2.0 host controller? or you want to write a driver for the usb
2.0 host controller itself (the PCI device). If you want to write a driver
for the host controller, i have to ask....why? the internals and interfaces
for the host controller (and hub driver) are not documented and very very
hard to get right

d

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"Vasanthavalli Chandran" <vasa...@hotmail.com> wrote in message
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[Wilhelm Noeker]

Doron Holan [MSFT] wrote:

> If you want to write a
> driver for the host controller, i have to ask....why? the internals and
> interfaces for the host controller (and hub driver) are not documented
> and very very hard to get right

Some companies (Silex and others) seem to have done just that, they've
written their own USB hub driver, in order to implement a remote
(networked) USB hub. How did *they* do it, if there's no documentation?

[Vetzak]

Easy. You buy a license of IDAPro and disassemble the original driver.

[Doron Holan [MSFT]]

they can easily get to 80% device coverage, the last 20% can be close to
impossible

d

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"Wilhelm Noeker" <wno...@t-online.de> wrote in message
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