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sysvinit-inittab: start_getty: Cleanup comments

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(From OE-Core rev: dd17a009e3adf2dc0d75a4c664086f661401e9ff)

Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Andrea Adami
2017-09-16 01:35:50 +02:00
committed by Richard Purdie
parent fbefc32988
commit b555f56edc
1 changed files with 13 additions and 13 deletions
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meta/recipes-core/sysvinit/sysvinit-inittab/start_getty
+13 -13
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@@ -1,16 +1,16 @@
#!/bin/sh
####################################################################################
# This script is use to automatic start serial console once power up.
# Script enhancement has been done base on Bug YOCTO 10844.
# Configuration can be done in meta/conf/machine/*.conf variable SERIAL_CONSOLES.
# Most of the information is retrieve from /proc virtual filesystem which
# contain all the runtime system information (eg. system memory, device mount, etc).
####################################################################################
###############################################################################
# This script is used to automatically set up the serial console(s) on startup.
# The variable SERIAL_CONSOLES can be set in meta/conf/machine/*.conf.
# Script enhancement has been done based on Bug YOCTO #10844.
# Most of the information is retrieved from /proc virtual filesystem containing
# all the runtime system information (eg. system memory, device mount, etc).
###############################################################################
# Get active serial filename.
active_serial=$(grep "serial" /proc/tty/drivers | cut -d/ -f1 | sed "s/ *$//")
# Re-phrase input parameter from ttyS target index (ttyS1, ttyS2, ttyAMA0, etc).
# Rephrase input parameter from ttyS target index (ttyS1, ttyS2, ttyAMA0, etc).
runtime_tty=$(echo $2 | grep -oh '[0-9]')
# Backup $IFS.
@@ -19,14 +19,14 @@ DEFAULT_IFS=$IFS
IFS="$(printf '\n\t')"
for line in $active_serial; do
# File is availability, file content current active serial target index.
# Check we have the file containing current active serial target index.
if [ -e "/proc/tty/driver/$line" ]
then
# File content a lot of unknown serial. We use -v to remove all unmatch and get left off.
# Tail use to avoid 1st line included into the filter because 1st line is file description.
activetty=$(grep -v "unknown" "/proc/tty/driver/$line" | tail -n +2 | grep -oh "^\s*\S*[0-9]")
# Remove all unknown entries and discard the first line (desc).
activetty=$(grep -v "unknown" "/proc/tty/driver/$line" \
| tail -n +2 | grep -oh "^\s*\S*[0-9]")
for active in $activetty; do
# Check if both index is match then proceed to enable the serial console.
# If indexes do match then enable the serial console.
if [ $active -eq $runtime_tty ]
then
if [ -c /dev/$2 ]