Changing baudrate of a screen session without restarting screen.

[mind entropy]

Hi,

  I have opened /dev/ttyUSB0 using screen at 115200 baud rate(screen
/dev/ttyUSB0 115200). The ttyUSB0 is a usb to serial converter device
file. I have a usb to serial converter connected from my laptop to an
embedded device. Once in uboot I change the baudrate. I need to change
the screen baudrate without restarting screen preferably using a
shortcut key. Is it possible to do it?

Thanks,
Gautam.