- Query on USB bus driver
- Posted by satheesh.k@globaledgesoft.com on July 27th, 2006
Hi all,
Currently iam working in faking a usb bus driver.
I am catching all the query asked from the class driver which is on the
top layer of my bus driver.
The problem what i am facing now is in setting the configuration for
the class driver?
The class driver inorder to set a configuration creating a URB by
passing the corresponding configuration descriptor to the bus driver
which it wants to set.
In response to this query my bus driver has to send a configration
handle back to the class driver.
How a bus driver will get a handle to a configration? What is the need
of this configration handle?
Similarly for the interface and endpoints?
Please help me
- Posted by Doron Holan [MS] on July 28th, 2006
what are you really trying to do? simulate a usb device before you have the
actual device? if so, there is technology in the WDK which will help you do
this w/out having to write a fake usb bus driver.
to answer your question, the config handle is opaque to the class driver,
it's just a value. you can define it's meaning. same with USBD_PIPE_HANDLEs
that you must return in response to the select config/interface. the class
driver treats them as opaque values to put into the URB and you can use them
for whatever you want.
d
--
Please do not send e-mail directly to this alias. this alias is for
newsgroup purposes only.
This posting is provided "AS IS" with no warranties, and confers no rights.
<satheesh.k@globaledgesoft.com> wrote in message
news:1153995439.549839.246680@s13g2000cwa.googlegr oups.com...
- Posted by satheesh.k@globaledgesoft.com on July 28th, 2006
Doron Holan [MS] wrote:
Thank for your valuable reply
Actually I am using the ddk sample(toaster / bus) code to do this job.
There i have an application code which will simulate a usb device.
But which one are u referring to...???
- Posted by satheesh.k@globaledgesoft.com on July 28th, 2006
Doron Holan [MS] wrote:
Thank for your valuable reply
Actually I am using the ddk sample(toaster / bus) code to do this job.
There i have an application code which will simulate a usb device.
But which one are u referring to...???
- Posted by Eliyas Yakub [MSFT] on July 28th, 2006
Go thru this Winhec presentation.
http://download.microsoft.com/downlo...EV098_WH06.ppt
--
-Eliyas
This posting is provided "AS IS" with no warranties, and confers no rights.
http://www.microsoft.com/whdc/driver/tips/default.mspx
