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Issue:
FTDI USB-Serial driver is constantly writing message to console:
write request of 0 bytes
Cause:
The FTDI driver code uses the "err" function which will write the message to standard out.
Solution:
FTDI source developer recommends that the "err" function be changed to the "dbg" function.
Edit the ftdi_sio.c file (found in /usr/src/[kernel version]/drivers/usb/serial) and modify the following line:
err("write request of 0 bytes");
to
dbg("write request of 0 bytes");
Note: Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation and may modify the driver in a future kernel release.
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