1SERIAL8250_GET_PORT(9)         16x50 UART Driver        SERIAL8250_GET_PORT(9)
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NAME

6       serial8250_get_port - retrieve struct uart_8250_port
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SYNOPSIS

9       struct uart_8250_port * serial8250_get_port(int line);
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ARGUMENTS

12       line
13           serial line number
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DESCRIPTION

16       This function retrieves struct uart_8250_port for the specific line.
17       This struct *must* *not* be used to perform a 8250 or serial core
18       operation which is not accessible otherwise. Its only purpose is to
19       make the struct accessible to the runtime-pm callbacks for context
20       suspend/restore. The lock assumption made here is none because
21       runtime-pm suspend/resume callbacks should not be invoked if there is
22       any operation performed on the port.
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25Kernel Hackers Manual 3.10         June 2019            SERIAL8250_GET_PORT(9)
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