Hi!
I am using a USB to serial adapter having FTDI chip,
for the USB testing on Linux.
1. When I selct the USB ftdi single port serial driver
in kernel configuration, and do a
cat /proc/bus/usb/devices after booting up then I get
the following output, which says that no driver is
associated with the serial converter.
Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12
MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8
#Cfgs= 1
P: Vendor=067b ProdID=2303 Rev= 2.02
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00
Driver=(none)
E: Ad=81(I) Atr=03(Int.) MxPS= 10 Ivl=1ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=83(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
however when I select the generic USB serial driver
from the kernel configuration I get the following
output for the above command, which says that the
generic serial driver has been associate with the
USB-serial adapter.
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00
Driver=usbserial_generic
Can any one please tell me why the FTDI drver is not
getting associated twith the USB to serial adapter.
2. If I am using a USB to serial adapter while
performing the USB testing at linux-usb.org/usbtest,
what is the device that I should connect at the serial
end of the cable? Can I perform the same testing by
making the serial cable as loopback, or how exactly
the setup would be in this case?
3. If I have to do a USB host to host transfer(bulk
transfer) in Linux then , what do I need to enable in
the kernel configuration or what's the extra
developement I have to do on top of the available USB
drivers?
regards
-Nitin
--- David Brownell <[EMAIL PROTECTED]> wrote:
> On Thursday 09 June 2005 10:26 pm, you wrote:
> > Hi!
> >
> > When the new version of the document would be
> > released?
>
> I'll check it into CVS this morning so it should be
> on the web mirrors tomorrow.
>
>
> > Can u please explain me the Linux USB test setup?
> > What I understand is
> >
> > 1. The net2280 EVB will be fixed on PCI bus on a
> > desktop machine running either windows or
> linux.Any
> > way my target board where I am developing a host
> > controller driver and want to test the same
> doesn't
> > has a PCI bus.
> > Does the desktop machine having the net2280 card
> will
> > act as a USB device ???
>
> Exactly.
>
> > If not then where would we
> > connect the USB device or its not required to
> connect
> > the USb device for this testing.
> >
> > 2. The test driver and hecnce the shell scirpts
> would
> > run on the target machine where I am testing a USB
> > host controller driver.
>
> Yes. It's Linux after all!
>
>
> > 3. The net2280 EVB chip will be connected to the
> USB
> > host ports(on target board) through a USB cable.
>
> Yes.
>
> > 4. Can the test logs be stored in a file
> implicitly?
>
> I usually just run "script" to make all the output
> of
> the test scripts stay in a file. That doesn't
> capture
> kernel messages on the test host of course, but
> that's
> what "syslog" is for anyway.
>
> - Dave
>
>
>
> > regards
> >
> > -Nitin
> >
> > --- David Brownell <[EMAIL PROTECTED]> wrote:
> >
> > > On Thursday 09 June 2005 2:31 am, you wrote:
> > > > hi!
> > > >
> > > > I want to test a OHCI compliant USB host
> > > controller
> > > > driver(2.6.11.11) with the tests mentioned at
> > > > http://www.linux-usb.org/usbtest/. The test
> > > recommends
> > > > that one should use the keyspan serial
> adapters
> > > which
> > > > have the Cypress EZ USB full speed chip. I
> have
> > > couple
> > > > of questions regardng this.I hope will help me
> > > > understand them better.
> > >
> > > Actually an updated version of that text will
> > > mention
> > >
> > >
> http://store.yahoo.com/plxtech/net2280evb.html
> > >
> > > as better to test with than the EZ-USB stuff.
> > >
> > > > 1. Is it a must to use the combination of
> hardware
> > > and
> > > > firmware meniotned here to get better test
> > > > effectiveness?
> > >
> > > I don't understand the question. Do I know of a
> > > better way to test? No.
> > >
> > >
> > > > 2. If I am using an OHCI complaint host
> > > controller,
> > > > which of the keyspan sereial adapters would be
> a
> > > best
> > > > fit? how do I determinge this?
> > >
> > > The Net2280 board is easiest to use.
> > >
> > >
> > > > 3. Which are the test features of these test
> suite
> > > ,
> > > > which can be run only using the cypress chip?
> > >
> > > Nothing; they're just cheap and widely
> available.
> > > But it's 8051 based and the firmware isn't
> perfect.
> > >
> > >
> > > > 4. Where can I get the latest shell scripts
> for
> > > > generating different traffic patterns? And
> whether
> > > the
> > > > test driver in the 2.6.11.11 kernel is tha
> latest
> > > one.
> > >
> > > That web page has current scripts, or you can
> add
> > > new tests. I think there's a small patch to
> > > "usbtest"
> > > in the latest MM patchset.
> > >
> > > - Dave
> > >
> > >
> > > > regrards
> > > >
> > > > -Nitin
> > > >
> > > >
> > > >
> > > > Send instant messages to your online friends
> > > http://uk.messenger.yahoo.com
> > > >
> > >
> >
> >
> > Send instant messages to your online friends
> http://uk.messenger.yahoo.com
> >
>
Send instant messages to your online friends http://uk.messenger.yahoo.com
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