[D] device
[D] power
[D] subsystem
[F] close_delay
[F] closing_wait
[F] custom_divisor
[F] dev
[F] flags
[F] io_type
[F] iomem_base
[F] iomem_reg_shift
[F] irq
[F] line
[F] port
[F] type
[F] uartclk
[F] uevent
[F] xmit_fifo_size