What:		/sys/bus/platform/drivers/aspeed-vuart/*/lpc_address
Date:		April 2017
Contact:	Jeremy Kerr <jk@ozlabs.org>
Description:	Configures which IO port the host side of the UART
		will appear on the host <-> BMC LPC bus.
Users:		OpenBMC.  Proposed changes should be mailed to
		openbmc@lists.ozlabs.org

What:		/sys/bus/platform/drivers/aspeed-vuart/*/sirq
Date:		April 2017
Contact:	Jeremy Kerr <jk@ozlabs.org>
Description:	Configures which interrupt number the host side of
		the UART will appear on the host <-> BMC LPC bus.
Users:		OpenBMC.  Proposed changes should be mailed to
		openbmc@lists.ozlabs.org

What:		/sys/bus/platform/drivers/aspeed-vuart/*/sirq_polarity
Date:		July 2019
Contact:	Oskar Senft <osk@google.com>
Description:	Configures the polarity of the serial interrupt to the
		host via the BMC LPC bus.
		Set to 0 for active-low or 1 for active-high.
Users:		OpenBMC.  Proposed changes should be mailed to
		openbmc@lists.ozlabs.org