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uname -a: Linux foro-restaurado-2 5.15.0-1040-oracle #46-Ubuntu SMP Fri Jul 14 21:47:21 UTC 2023
aarch64 

uid=33(www-data) gid=33(www-data) groups=33(www-data) 

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/usr/src/linux-oracle-5.13-headers-5.13.0-1018/tools/testing/selftests/ir/   drwxr-xr-x
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Viewing file:     ir_loopback.sh (525 B)      -rwxr-xr-x

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4

if [ $UID != 0 ]; then
	echo "Please run ir_loopback test as root [SKIP]"
	exit $ksft_skip
fi

if ! /sbin/modprobe -q -n rc-loopback; then
        echo "ir_loopback: module rc-loopback is not found [SKIP]"
        exit $ksft_skip
fi

/sbin/modprobe rc-loopback
if [ $? -ne 0 ]; then
	exit
fi

RCDEV=$(grep -l DRV_NAME=rc-loopback /sys/class/rc/rc*/uevent | grep -o 'rc[0-9]\+')

./ir_loopback $RCDEV $RCDEV
exit