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DCD state change

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I have an AcceleportXem/PCI with one 16ports module.

I'm currently using dgap-1.3-20 version and I'm facing problems in reading dcd state change (from high to low).

If I only have one serial port in use no problem is detected but when using some more (4 serial ports in this case) it's observed some degradation to read dcd state.

The time elapse since DCD raises to DCD drops is about 1s and it usually should take 200ms. Apparently the driver is reporting the dcd drop to late...

I already tested dgap-1.3-20 version and this issue remains.

I'm using Red hat el5 with kernel 2.6.18-164.el5

What is going on and what can I do?

Thank you
asked Jan 20, 2011 in Serial Cards by joaorocha New to the Community (0 points)

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