[PATCH] libcamera: base: utils: Implement hex() for 8-bit and 16-bit values

[Laurent Pinchart]

The utils::hex() function is implemented for 32-bit and 64-bit integers,
but not for 8-bit and 16-bit. This causes a link error (possibly at
runtime for IPA modules due to lazy linking) when trying to print 8-bit
or 16-bit integers. Implement additional specializations to fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 include/libcamera/base/utils.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/include/libcamera/base/utils.h b/include/libcamera/base/utils.h
index 4ae02dc97478..734ff81e2860 100644
--- a/include/libcamera/base/utils.h
+++ b/include/libcamera/base/utils.h
@@ -90,6 +90,30 @@ template<typename T,
 _hex hex(T value, unsigned int width = 0);
 
 #ifndef __DOXYGEN__
+template<>
+inline _hex hex<int8_t>(int8_t value, unsigned int width)
+{
+	return { static_cast<uint64_t>(value), width ? width : 2 };
+}
+
+template<>
+inline _hex hex<uint8_t>(uint8_t value, unsigned int width)
+{
+	return { static_cast<uint64_t>(value), width ? width : 2 };
+}
+
+template<>
+inline _hex hex<int16_t>(int16_t value, unsigned int width)
+{
+	return { static_cast<uint64_t>(value), width ? width : 4 };
+}
+
+template<>
+inline _hex hex<uint16_t>(uint16_t value, unsigned int width)
+{
+	return { static_cast<uint64_t>(value), width ? width : 4 };
+}
+
 template<>
 inline _hex hex<int32_t>(int32_t value, unsigned int width)
 {

base-commit: 196abb8d1d6e0fe9d190315e72a85eb12d16a554
-- 
Regards,

Laurent Pinchart