This routine enables loading caldata binary via the kernel sysfs loader
Signed-off-by: Thibaut VARÈNE <[email protected]>
---
package/base-files/Makefile | 2 +-
package/base-files/files/lib/functions/caldata.sh | 15 +++++++++++++++
2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/package/base-files/Makefile b/package/base-files/Makefile
index f1f0f17a60..d8e7c31878 100644
--- a/package/base-files/Makefile
+++ b/package/base-files/Makefile
@@ -12,7 +12,7 @@ include $(INCLUDE_DIR)/version.mk
include $(INCLUDE_DIR)/feeds.mk
PKG_NAME:=base-files
-PKG_RELEASE:=219
+PKG_RELEASE:=220
PKG_FLAGS:=nonshared
PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/
diff --git a/package/base-files/files/lib/functions/caldata.sh
b/package/base-files/files/lib/functions/caldata.sh
index e9349c7eee..a64f07778d 100644
--- a/package/base-files/files/lib/functions/caldata.sh
+++ b/package/base-files/files/lib/functions/caldata.sh
@@ -68,6 +68,21 @@ caldata_from_file() {
caldata_die "failed to extract calibration data from $source"
}
+caldata_sysfsload_from_file() {
+ local source=$1
+ local offset=$(($2))
+ local count=$(($3))
+
+ # test extract to /dev/null first
+ dd if=$source of=/dev/null iflag=skip_bytes bs=$count skip=$offset
count=1 2>/dev/null || \
+ caldata_die "failed to extract calibration data from $source"
+
+ # can't fail now
+ echo 1 > /sys/$DEVPATH/loading
+ dd if=$source of=/sys/$DEVPATH/data iflag=skip_bytes bs=$count
skip=$offset count=1 2>/dev/null
+ echo 0 > /sys/$DEVPATH/loading
+}
+
caldata_valid() {
local expected="$1"
local target=$2
--
2.11.0
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