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authorTom Hughes <tomhughes@chromium.org>2020-03-06 17:15:29 -0800
committerCommit Bot <commit-bot@chromium.org>2020-03-09 19:54:31 +0000
commit97c73303cf9d5f6c8b6e871ddebd01a8e4ce4206 (patch)
treed4072218f6e739bbf4cb1ca8ce53d32f9bd81215 /driver/fingerprint/fpc/libfp
parent09d4d922fedaea222a887ae2fb8cffca18e64a36 (diff)
downloadchrome-ec-97c73303cf9d5f6c8b6e871ddebd01a8e4ce4206.tar.gz
driver/fingerprint: Clarify FPC 1145 hardware ID
BRANCH=none BUG=b:150407388 TEST=make buildall -j Change-Id: Id0e7b42affcabf90c94334603a40b87cbc9543a8 Signed-off-by: Tom Hughes <tomhughes@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2092913 Commit-Queue: Craig Hesling <hesling@chromium.org> Reviewed-by: Andrey Perminov <andrey.perminov@fingerprints.com> Reviewed-by: Craig Hesling <hesling@chromium.org>
Diffstat (limited to 'driver/fingerprint/fpc/libfp')
-rw-r--r--driver/fingerprint/fpc/libfp/fpc1145_private.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/driver/fingerprint/fpc/libfp/fpc1145_private.h b/driver/fingerprint/fpc/libfp/fpc1145_private.h
index 91b072d6a2..399c75118b 100644
--- a/driver/fingerprint/fpc/libfp/fpc1145_private.h
+++ b/driver/fingerprint/fpc/libfp/fpc1145_private.h
@@ -8,7 +8,13 @@
#include <stdint.h>
-/* The 16-bit hardware ID is 0x140y */
+/**
+ * The hardware ID is 16-bits. All 114x FPC sensors (including FPC1145) are
+ * detected with the pattern 0x1400 and mask 0xFFF0. All supported variants of
+ * the 1145 (0x140B, 0x140C, and 0x1401) should be detected as part of the FPC
+ * 1140 family with identical functionality.
+ * See http://b/150407388 for additional details.
+ */
#define FP_SENSOR_HWID 0x140
/* Sensor type name */