Re: assessing winusb potential

Thanks. I am working with some example code from the micro-controller I am
using. So it appears in the USB interrupt handler that there is an event for
IN and OUT data. On OUT data it calls an endpoint handler that reads the data
sent by the host. But what triggers the IN data event. Does it go like this?

1. My device writes data to the IN endpoint.
2. USB hardware sends the data.
3. The IN data interrupt/event occurs after the data has been sent to the
host. My device can now write more data to the IN endpoint.

I'm still a little confused on when I can safely write to the data to the IN
endpoint and what is the significance of the IN data interrupt.

Paul


"Doron Holan [MSFT]" wrote:

no, the host controller by itself will not poll the device asking if it has
data. it is up to you to always have a pending transfer on the IN endpoint
so that the host controller is always asking for data. your device can then
send back data when it has something to send.

d

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"pswork" <pswork@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:78DF78A7-1D8F-4F8E-B2D4-87D9CCB03369@xxxxxxxxxxxxxxxx
Thanks, that did it. If I may, have another question.

Using a single bulk address with both a IN and OUT endpoint. I am a
little
unclear on the device sending data to the host. When does the host send
notifcation to the device that it is expecting data? In particular my
device
is monitoring some engine functions and based on some conditions will
asynchronously send status data to the host. I know a USB host initiates
IN
data transfers. Does it periodically ask a device if it has any data to
send?

Paul


"Doron Holan [MSFT]" wrote:

if you downloaded the latest WDK (6001) it comes with KMDF 1.7, which
would
be in wdfcoinstaller01007.dll. even then, you might have the 1.7
coinstaller b/c there was a servicing problem which delayed the release
of
the coinstaller. You can download the kmdf coinstaller separately,
http://blogs.msdn.com/doronh/archive/2008/04/17/the-wdf-1-7-cointstallers-are-now-available.aspx

d

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"pswork" <pswork@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:A2FE7491-7DD4-46C9-8F22-68CBA34161F1@xxxxxxxxxxxxxxxx
I am trying to install WinUSB on XP. I think I have reviewed all
possible
documentation and am stuck. I installed WDK, used a sample INF from a
Microsoft site, the WinUSB co-installer works fine, however the KMDF
does
not. I do not have WdfCoInstaller01005.dll on my system nor can I find
out
why or where to get it. Can you help?

[CoInstallers_CopyFiles]
WinUSBCoInstaller.dll
WdfCoInstaller01005.dll

"Doron Holan [MSFT]" wrote:

try the 1.5 versions from the 6000 WDK .. the installers you have may
not
be
able to install downlevle (IIRC, rc2 has coinstallers which can
install
downlevel properly)

d

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"Neel" <Neel@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:F2FE6C0A-7267-45B7-897C-EC841E04E3B6@xxxxxxxxxxxxxxxx
Thanks dmm for your inputs.

I gone through many posting on the given link but my problem of
installing
the winusb.sys driver for the USB Stick is not solved (Using the INF
file
details provided my microsoft in "WinUsb_HowTo.doc") .

I am using the following WDK files (WDK - Windows Server 2008 RC1)
for
the
installation on WinXP:
1). WinUSBCoInstaller.dll
2). WdfCoInstaller01007.dll
3). WUDFUpdate_01007.dll
& INF file from the ""WinUsb_HowTo.doc"

I am installing the driver from "Device Manager->Update Driver" on
the
connected "USB Mass storage Device".
Intallation start copying & installing "WinUSBCoInstaller.dll" &
"WdfCoInstaller01007.dll" but at the end, it displays the message
dialog
"Cannot install this hardware", "There was a problem installing this
hardware".

Also, when I select the device in Device Manager and check the
driver
details, then I found that the WINUSB.SYS is NOT installed (instead
the
default USBTOR.SYS is installed).

I think there is problem withe INF file only.
What could be the problem?
Is this INF file not proper?
Is the WDK files not proper?

Thanks
Neel


"dmm" wrote:

Hi Neel

I checked my notes and this is what I have:

Goto the OSR Online site
http://www.osronline.com/cf.cfm?PageURL=showlists.CFM?list=NTDEV
and
search
for "winusb." There is a lot of good information there on editing
your
inf
file so that the co-installers will execute properly.

dmm

"Neel" wrote:

Hi dmm,

Please could you tell me, how did you install the winusb.sys?

I tried it 100 times but still not able to succeed.
I followed the instructions given in "WinUsb_HowTo.doc" which is
from
Microsoft.
I tried it on internet with many options. But no use.

I am using USB stick (Pen drive) device for installation.

Thanks,
Neel

"dmm" wrote:

Thanks Don -- just like you said. During the inf/installation
process, the
winusb.sys is extracted and copied to directory
"\windows\system32\driver."

dmm

"Don Burn" wrote:

Look in redist\winUSB the files are part of a coinstaller.


--
Don Burn (MVP, Windows DDK)
Windows 2k/XP/2k3 Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr
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"dmm" <dmm@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:BA76B8CC-E1C4-4158-9B0D-0475D7949941@xxxxxxxxxxxxxxxx
Hi Don

I have installed WinDDK 6000 (which targets both vista and
xp)
on
my PC.
I
search the entire DDK for files "winusb.sys" and
"winusb.dll"
but
I get
no
hits.

Thanks
dmm

"Don Burn" wrote:

WinUSB is part of the WDK see
http://www.microsoft.com/whdc/DevTools/WDK/WDKpkg.mspx for
details how
to
get it.


--
Don Burn (MVP, Windows DDK)
Windows 2k/XP/2k3 Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr
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"dmm" <dmm@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:A8FDE0B4-12BE-42CD-95F2-035F26746E7E@xxxxxxxxxxxxxxxx
My company manufactures a USB device that may attach to
any
USB port
on
the
PC but only one such device is allowed per PC. Our
device
is
currently
driven by an HID kernel-mode driver in the W2k/XP
platforms
and
basically
performs read/write operations aside from the power/pnp
functionality.

If I am not mistaken, the WinUSB environment offers an
attractive
alternative for us in the Vista platform. Is this true
or
should we
be
looking at UMDF?

If WinUSB is suitable, where may I download the
winusb.sys
and
.dll
files
for testing on XP?

Thanks
dmm












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