Hi,
my test department tells me that they need to perform immunity tests on the
hardware and therefore I will need to collect statistics on the USB data being
transferred.
Can this be done? Do the USB drivers export these sorts of statistics to /sys
like ethernet does?
Here is the request from my test department:
--- SNIP ---
1. Check that data can be transferred in and out of each port at the rate
specified by the interface spec.
2. Monitor the data transfer to check if:
(a) data is transferred with no errors;
(b) data is transferred with errors, but then data is re-sent successfully;
(c) data is lost.
Monitoring should include:
...
(iii) raw and net bit error rates
...
*(vii) operation of the "device reset detect" bit of circuitry on the
device port, and detection of that by the host.
(g) For immunity testing, we would require the test to run continuously, but be
able to identify errors within one second of their occurrence.
*(h) For production testing, we would want to send a fixed amount of data, and
check the raw and net error rates.
Can you please add a 'raw and net bit error count' monitoring output. This
will allow monitoring of the errors on a second by second basis
--- SNAP ---
regards,
Aras Vaichas
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