linux-6.12.1/scripts/dev-needs.sh

2 # SPDX-License-Identifier: GPL-2.0
8 Usage: $(basename $0) [-c|-d|-m|-f] [filter options] <list of devices>
25   -c	lists the compatible string of the dependencies
26   -d	lists the driver name of the dependencies that have probed
27   -m	lists the module name of the dependencies that have a module
28   -f	list the firmware node path of the dependencies
29   -g	list the dependencies as edges and nodes for graphviz
30   -t	list the dependencies as edges for tsort
33   --allow-no-driver	By default dependencies that don't have a driver
40   --exclude-devlinks	Don't follow device links when tracking probe
43   --exclude-parents	Don't follow parent devices when tracking probe
51 	while [ $i -lt ${#OUT_LIST[@]} ]
56 		if [ ! -z "$D" ]
59 			# using the -t option.
60 			printf '%05u\t%s\n' ${i} "$D" | tr -d \'
68 	while [ $i -lt ${#OUT_LIST[@]} ]
72 			# if-statement treats 0 (no-error) as true
78 	# if-statement treats 1 (error) as false
82 # Return 0 (no-error/true) if parent was added
85 	if [ ${ALLOW_PARENTS} -eq 0 ]
92 	# then go up one level to find the real parent.
95 	while [ ! -e ${PARENT}/driver ]
109 # Return 0 (no-error/true) if one or more suppliers were added
114 	if [ ${ALLOW_DEVLINKS} -eq 0 ]
119 	SUPPLIER_LINKS=$(ls -1d $CON/supplier:* 2>/dev/null)
133 		if [ ! -e $SUPPLIER/driver -a ${ALLOW_NO_DRIVER} -eq 0 ]
148 	if [ -e $f ]
150 		echo -n $(cat $f)
152 		echo -n $1
158 	if [ -e $f ]
160 		echo -n $(basename $(realpath $f))
162 		echo -n $1
168 	if [ -e $f ]
170 		echo -n $(basename $(realpath $f))
172 		echo -n $1
178 	if [ ! -e $f ]
183 	if [ -e $f ]
185 		echo -n $(realpath $f)
187 		echo -n $1
194 		echo -n "\"$(basename $2)\"->\"$(basename $1)\""
196 		echo -n "\"$(basename $1)\""
201 	echo -n "\"$2\" \"$1\""
204 function detail_device() { echo -n $1; }
211 while [ $# -gt 0 ]
215 		--help)
219 		-c)
222 		-m)
225 		-d)
228 		-f)
231 		-g)
234 		-t)
237 		--allow-no-driver)
240 		--exclude-devlinks)
243 		--exclude-parents)
258 if [ $# -eq 0 ]
267 # Do a breadth first, non-recursive tracking of suppliers. The parent is also
270 while [ $i -lt ${#CONSUMERS[@]} ]
282 	if [ ! -e ${CONSUMER}/driver -a ${ALLOW_NO_DRIVER} -eq 0 ]
305 	if [ $ROOT -eq 1 ]
311 # Can NOT combine sort and uniq using sort -suk2 because stable sort in toybox
313 dev_to_detail | sort -k2 -k1 | uniq -f 1 | sort | cut -f2-