[libgpiod] [PATCH v2] gpioinfo: mark kernel claimed lines as used

[Ramon Fried <rfried.dev@gmail.com>]

In case where the GPIOLINE_FLAG_KERNEL flag was set
and no consumer string is provided by the kernel,
the used column was still showing the pin as "unused"
Fix that by writing "kernel".

Signed-off-by: Ramon Fried <rfried.dev@gmail.com>
---
v2:
  * Restructure for clarity
  * Print "kernel" if line is used by kernel.
  * Update commit message

 tools/gpioinfo.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/gpioinfo.c b/tools/gpioinfo.c
index bb17262..ba0327b 100644
--- a/tools/gpioinfo.c
+++ b/tools/gpioinfo.c
@@ -119,8 +119,12 @@ static void list_lines(struct gpiod_chip *chip)
 		     : prinfo(&of, 12, "unnamed");
 		printf(" ");
 
-		consumer ? prinfo(&of, 12, "\"%s\"", consumer)
-			 : prinfo(&of, 12, "unused");
+		if (!gpiod_line_is_used(line))
+		      prinfo(&of, 12, "unused");
+		else
+			consumer ? prinfo(&of, 12, "\"%s\"", consumer)
+				: prinfo(&of, 12, "kernel");
+
 		printf(" ");
 
 		prinfo(&of, 8, "%s ", direction == GPIOD_LINE_DIRECTION_INPUT
-- 
2.22.0