Hello,
i'm using Linux 2.6.35 at ARM and i experience the following issue with
the mxs-auart (App UART). If i transmit and receive data over the serial
port (using mxs-auart), all the interrupt counter (RX, TX, frame,
parity, break) accessed from user space (ioctl with TIOCGICOUNT or
/proc/tty/driver/auart) are zero.
Here is the scenario to reproduce the problem:
1. echoing some characters to the uart device
2. fetch the statistics from proc-Filesystem
Expected results: transmit counter greater than zero
Observed results: transmit counter is always zero
The same szenario on the mxs-duart (Debug UART) doesn't show this problem.
Is this a bug in mxs-auart or just not implemented?
Best Regards
Stefan
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