We are looking to purchase a good USB Analyzer. We need USB
2.0 480Mb speed, ability to check the eye diagram and logging. Any
suggestions?
Thanks
Scott
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for
More information about this;
GetStatus port 2 status 00180b POWER sig=j PEC CSC CONNECT
I added some code to do a 10us delayed double read of the port status
and it's the same so the status of 00180b is true. The important part
of the port status is the lower nibble 0xb, that's bit's 0, 1
I've heard about this bit before. In my experience with VIA UHCI
controllers it has always been set to 1 -- but I don't have a motherboard
with a VIA chipset.
That option should be set in any case. You may not need to ignore the
babble/EOF2 error; the higher-level USB protocols ought to be
On Fri, 23 Dec 2005, Scott D. Davilla wrote:
Disconnect after 6 days, 4 hours. Here's the log. It looks like the
familiar sporadic root hub disconnect. I suspect that there is a
sporadic condition where the root hub indicates a disconnect but the
disconnect is bogus. Can someone explain
Via usb controllers are known to have problems :(
If you insert a ehci pci card in the machine, does the same problem
happen?
Not possible, the one PCI slot is occupied with a gigabit network
card. We can't lose the gigabit so even if a pci ehci card solved the
issue, we get a different
We too are having long term problems with a spontaneous USB
disconnect hanging khubd. The only way to fix is a reboot. The
hardware is VIA EPIA 1GHz Nehemiah running a stock 2.6.14.3 kernel
with latest 117 test VIA bios. It's not a specific USB driver problem
as is occurs with various USB
