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Enables devices on a platform bus, such as serial8250 on the ISA bus, to be enumerated by the serdev subsystem. This enables further layering by e.g. the gnss subsystem. With this in change, these devices can now register with the serdev core and show up as serdev tty ports (serialX) and child devices (serialX-Y). serial8250: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a U6_16550A serial serial0: tty port ttyS0 registered serial8250: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a U6_16550A serial serial1: tty port ttyS1 registered serial8250: ttyS2 at I/O 0x3e8 (irq = 4, base_baud = 115200) is a U6_16550A serial serial2: tty port ttyS2 registered serial8250: ttyS3 at I/O 0x2e8 (irq = 3, base_baud = 115200) is a U6_16550A serial serial3: tty port ttyS3 registered The modalias shows up like this: # cat /sys/bus/serial/devices/serial0-0/modalias platform:serial8250 Bug: 146517987 Change-Id: I3711c9d9ecd66fad638a45a8745e97569ae01791 Signed-off-by: Alistair Delva <adelva@google.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
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https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.