Directory listing for /sys/class/tty/ttyS21/

• close_delay
• closing_wait
• console
• custom_divisor
• dev
• device@
• flags
• io_type
• iomem_base
• iomem_reg_shift
• irq
• line
• port
• power/
• subsystem@
• type
• uartclk
• uevent
• xmit_fifo_size