git: 948dac0a87 - main - handbook/serialcomms: Replace references to sio(4) with uart(4)

The branch main has been updated by naddy (ports committer):

URL: https://cgit.FreeBSD.org/doc/commit/?id=948dac0a87a2fbde3193a8f969aaea4af06a7788

commit 948dac0a87a2fbde3193a8f969aaea4af06a7788
Author:     Christian Weisgerber <naddy@FreeBSD.org>
AuthorDate: 2022-10-30 14:25:17 +0000
Commit:     Christian Weisgerber <naddy@FreeBSD.org>
CommitDate: 2022-10-30 14:25:17 +0000

    handbook/serialcomms: Replace references to sio(4) with uart(4)
    
    uart(4) became the sole default serial driver in FreeBSD 8, and
    the sio(4) driver and man page were removed for FreeBSD 13.
---
 documentation/content/en/books/handbook/serialcomms/_index.adoc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/documentation/content/en/books/handbook/serialcomms/_index.adoc b/documentation/content/en/books/handbook/serialcomms/_index.adoc
index afd3caee2c..f9a72195b2 100644
--- a/documentation/content/en/books/handbook/serialcomms/_index.adoc
+++ b/documentation/content/en/books/handbook/serialcomms/_index.adoc
@@ -366,7 +366,7 @@ There are two different kinds of entries:
 FreeBSD also provides initialization devices ([.filename]#/dev/ttyuN.init# and [.filename]#/dev/cuauN.init# or [.filename]#/dev/cuadN.init#) and locking devices ([.filename]#/dev/ttyuN.lock# and [.filename]#/dev/cuauN.lock# or [.filename]#/dev/cuadN.lock#).
 The initialization devices are used to initialize communications port parameters each time a port is opened, such as `crtscts` for modems which use `RTS/CTS` signaling for flow control.
 The locking devices are used to lock flags on ports to prevent users or programs changing certain parameters.
-Refer to man:termios[4], man:sio[4], and man:stty[1] for information on terminal settings, locking and initializing devices, and setting terminal options, respectively.
+Refer to man:termios[4], man:uart[4], and man:stty[1] for information on terminal settings, locking and initializing devices, and setting terminal options, respectively.
 
 [[serial-hw-config]]
 === Serial Port Configuration
@@ -688,7 +688,7 @@ vq|VH57600|Very High Speed Modem at 57600,8-bit:\
         :nx=VH9600:tc=std.57600:
 ....
 
-For a slow CPU or a heavily loaded system without 16550A-based serial ports, this configuration may produce `sio` "silo" errors at 57.6 Kbps.
+For a slow CPU or a heavily loaded system without 16550A-based serial ports, this configuration may produce `uart` "silo" errors at 57.6 Kbps.
 
 The configuration of [.filename]#/etc/ttys# is similar to <<ex-etc-ttys>>, but a different argument is passed to `getty` and `dialup` is used for the terminal type.
 Replace _xxx_ with the process `init` will run on the device:
@@ -1045,7 +1045,7 @@ A monitor does not need to be attached.
 ====
 
 . Plug a dumb terminal, an old computer with a modem program, or the serial port on another UNIX(R) box into the serial port.
-. Add the appropriate `hint.sio.*` entries to [.filename]#/boot/device.hints# for the serial port. Some multi-port cards also require kernel configuration options. Refer to man:sio[4] for the required options and device hints for each supported serial port.
+. Add the appropriate `hint.uart.*` entries to [.filename]#/boot/device.hints# for the serial port. Some multi-port cards also require kernel configuration options. Refer to man:uart[4] for the required options and device hints for each supported serial port.
 . Create [.filename]#boot.config# in the root directory of the `a` partition on the boot drive.
 +
 This file instructs the boot block code how to boot the system.