Description of problem:
I have been using an Edgeport USB/Serial adaptor and set RTS using this
code:

    bits = TIOCM_RTS;
    ioctl(GenInfo->fd, TIOCMBIS, &bits);    /* Assert RTS */

This has worked on all FC6 kernels up to and including kernel-2.6.20-1.2962.fc6.
I updated to kernel-2.6.22.1-32.fc6 yesterday and the above code no longer works
with the edgeport device driver.  The function call returns zero, but RTS does
not get asserted.

Version-Release number of selected component (if applicable):
kernel-2.6.22.1-32.fc6

How reproducible:
Always.

Steps to Reproduce:
1.  See code above.
2.
3.
  
Actual results:
Function returns zero but doesn't do anything.

Expected results:
RTS should be asserted as it was with previous kernels.

Additional info: