[OpenWrt-Devel] [PATCH v2 12/14] package/base-files: add caldata_sysfsload_from_file()

[mail at adrianschmutzler.de]

Hi,

> -----Original Message-----
> From: openwrt-devel [mailto:openwrt-devel-bounces at lists.openwrt.org]
> On Behalf Of Thibaut VARÈNE
> Sent: Montag, 20. April 2020 15:35
> To: openwrt-devel at lists.openwrt.org
> Cc: Thibaut VARÈNE <hacks at slashdirt.org>; koen.vandeputte at ncentric.com
> Subject: [OpenWrt-Devel] [PATCH v2 12/14] package/base-files: add
> caldata_sysfsload_from_file()
> 
> This routine enables loading caldata binary via the kernel sysfs loader
> 
> Signed-off-by: Thibaut VARÈNE <hacks at slashdirt.org>
> ---
>  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() {

Didn't get that at first. Maybe choose something like
caldata_file_to_sysfs()?

> +	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

Maybe make $DEVPATH or /sys/$DEVPATH an argument?

Best

Adrian

> +	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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> openwrt-devel at lists.openwrt.org
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