6915c0e487
Added file /sys/devices/.../tty/ttySX/uartclk to allow reading uartclk value in struct uart_port in serial_core via sysfs. tty_register_device() has been generalized and refactored in order to add support for setting drvdata and attribute_group to the device. Signed-off-by: Tomas Hlavacek <tmshlvck@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
28 lines
841 B
Text
28 lines
841 B
Text
What: /sys/class/tty/console/active
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Date: Nov 2010
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Contact: Kay Sievers <kay.sievers@vrfy.org>
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Description:
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Shows the list of currently configured
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console devices, like 'tty1 ttyS0'.
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The last entry in the file is the active
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device connected to /dev/console.
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The file supports poll() to detect virtual
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console switches.
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What: /sys/class/tty/tty0/active
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Date: Nov 2010
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Contact: Kay Sievers <kay.sievers@vrfy.org>
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Description:
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Shows the currently active virtual console
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device, like 'tty1'.
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The file supports poll() to detect virtual
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console switches.
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What: /sys/class/tty/ttyS0/uartclk
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Date: Sep 2012
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Contact: Tomas Hlavacek <tmshlvck@gmail.com>
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Description:
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Shows the current uartclk value associated with the
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UART port in serial_core, that is bound to TTY like ttyS0.
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uartclk = 16 * baud_base
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