assert in usbport

trying to determine if my fast usb device is being plugged into a 1.1 host
on XP.
So I try getting what is called the direct client access to USB Bus
seems ok, get a pointer to the IsDeviceHighSpeed() function, it returns 1 on
ehci and 0 on uhci, that is good, no probelms.
Not interested in the interface any more so I
InterfaceDereference(BusInterfaceV1.BusContext) // identical parameter
passed to IsDeviceHigh....
and get an assert
<TEST_TRAP> c:\sandbox\usb\rhcproto\ms24nov03\hcd\usbport\busi f.c, line 116
Break instruction exception - code 80000003 (first chance)
nt!DbgBreakPoint:
8052a5cc cc int 3
0: kd>
continues ok
1. Is there an easier way to determine what I need to know? or
2. any more info why am I getting an assert here? would checked build give
me more details?

Note: I don't think I am supposed to call InterfaceReference()
but I tried that too and got an assert also

Thanks
tom

Hi,

Looks more like a hardcoded breakpoint than an ASSERT to me...

Are you running a checked version of USBPORT? The free build on my XP dev
box shows this as the assembly for the dereference routine:

lkd> u usbport!USBPORT_BusInterfaceDereference
USBPORT!USBPORT_BusInterfaceDereference:
f65bf396 c20400 ret 0x4

So making that call doesn't actually do anything. I'd check out the listing
for the checked USBSTOR and see if it's just a DbgBreakPoint and a return or
if it looks like it's doing some other validation.

-scott

--
Scott Noone
Software Engineer
OSR Open Systems Resources, Inc.
http://www.osronline.com

"Tom Picard" <> wrote in message
news:4130112C-774F-404C-BDC1-...
> trying to determine if my fast usb device is being plugged into a 1.1
> host
> on XP.
> So I try getting what is called the direct client access to USB Bus
> seems ok, get a pointer to the IsDeviceHighSpeed() function, it returns 1
> on
> ehci and 0 on uhci, that is good, no probelms.
> Not interested in the interface any more so I
> InterfaceDereference(BusInterfaceV1.BusContext) // identical parameter
> passed to IsDeviceHigh....
> and get an assert
> <TEST_TRAP> c:\sandbox\usb\rhcproto\ms24nov03\hcd\usbport\busi f.c, line
> 116
> Break instruction exception - code 80000003 (first chance)
> nt!DbgBreakPoint:
> 8052a5cc cc int 3
> 0: kd>
> continues ok
> 1. Is there an easier way to determine what I need to know? or
> 2. any more info why am I getting an assert here? would checked build
> give
> me more details?
>
> Note: I don't think I am supposed to call InterfaceReference()
> but I tried that too and got an assert also
>
> Thanks
> tom

also, are you sure you are running released (and not beta) bits? the file
path does not look like a released binary to me.

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.


"Scott Noone" <> wrote in message
news:...
> Hi,
>
> Looks more like a hardcoded breakpoint than an ASSERT to me...
>
> Are you running a checked version of USBPORT? The free build on my XP dev
> box shows this as the assembly for the dereference routine:
>
> lkd> u usbport!USBPORT_BusInterfaceDereference
> USBPORT!USBPORT_BusInterfaceDereference:
> f65bf396 c20400 ret 0x4
>
> So making that call doesn't actually do anything. I'd check out the
> listing for the checked USBSTOR and see if it's just a DbgBreakPoint and a
> return or if it looks like it's doing some other validation.
>
> -scott
>
> --
> Scott Noone
> Software Engineer
> OSR Open Systems Resources, Inc.
> http://www.osronline.com
>
> "Tom Picard" <> wrote in message
> news:4130112C-774F-404C-BDC1-...
>> trying to determine if my fast usb device is being plugged into a 1.1
>> host
>> on XP.
>> So I try getting what is called the direct client access to USB Bus
>> seems ok, get a pointer to the IsDeviceHighSpeed() function, it returns 1
>> on
>> ehci and 0 on uhci, that is good, no probelms.
>> Not interested in the interface any more so I
>> InterfaceDereference(BusInterfaceV1.BusContext) // identical parameter
>> passed to IsDeviceHigh....
>> and get an assert
>> <TEST_TRAP> c:\sandbox\usb\rhcproto\ms24nov03\hcd\usbport\busi f.c, line
>> 116
>> Break instruction exception - code 80000003 (first chance)
>> nt!DbgBreakPoint:
>> 8052a5cc cc int 3
>> 0: kd>
>> continues ok
>> 1. Is there an easier way to determine what I need to know? or
>> 2. any more info why am I getting an assert here? would checked build
>> give
>> me more details?
>>
>> Note: I don't think I am supposed to call InterfaceReference()
>> but I tried that too and got an assert also
>>
>> Thanks
>> tom
>
>

thanks, yes you are right it is some beta or debug version
tom

"Doron Holan [MS]" wrote:

> also, are you sure you are running released (and not beta) bits? the file
> path does not look like a released binary to me.
>
> 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.
>
>
> "Scott Noone" <> wrote in message
> news:...
> > Hi,
> >
> > Looks more like a hardcoded breakpoint than an ASSERT to me...
> >
> > Are you running a checked version of USBPORT? The free build on my XP dev
> > box shows this as the assembly for the dereference routine:
> >
> > lkd> u usbport!USBPORT_BusInterfaceDereference
> > USBPORT!USBPORT_BusInterfaceDereference:
> > f65bf396 c20400 ret 0x4
> >
> > So making that call doesn't actually do anything. I'd check out the
> > listing for the checked USBSTOR and see if it's just a DbgBreakPoint and a
> > return or if it looks like it's doing some other validation.
> >
> > -scott
> >
> > --
> > Scott Noone
> > Software Engineer
> > OSR Open Systems Resources, Inc.
> > http://www.osronline.com
> >
> > "Tom Picard" <> wrote in message
> > news:4130112C-774F-404C-BDC1-...
> >> trying to determine if my fast usb device is being plugged into a 1.1
> >> host
> >> on XP.
> >> So I try getting what is called the direct client access to USB Bus
> >> seems ok, get a pointer to the IsDeviceHighSpeed() function, it returns 1
> >> on
> >> ehci and 0 on uhci, that is good, no probelms.
> >> Not interested in the interface any more so I
> >> InterfaceDereference(BusInterfaceV1.BusContext) // identical parameter
> >> passed to IsDeviceHigh....
> >> and get an assert
> >> <TEST_TRAP> c:\sandbox\usb\rhcproto\ms24nov03\hcd\usbport\busi f.c, line
> >> 116
> >> Break instruction exception - code 80000003 (first chance)
> >> nt!DbgBreakPoint:
> >> 8052a5cc cc int 3
> >> 0: kd>
> >> continues ok
> >> 1. Is there an easier way to determine what I need to know? or
> >> 2. any more info why am I getting an assert here? would checked build
> >> give
> >> me more details?
> >>
> >> Note: I don't think I am supposed to call InterfaceReference()
> >> but I tried that too and got an assert also
> >>
> >> Thanks
> >> tom
> >
> >
>
>
>