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i2c-tools: use update-alternatives

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i2cget, i2cset, i2cdump and i2cdetect may also be provided by Busybox
when CONFIG_I2CGET, CONFIG_I2CSET, CONFIG_I2CDUMP and CONFIG_I2CDETECT
are enabled respectively.

Busybox has a priority of 50.

Prior to the patch building core-image-minimal with

    IMAGE_INSTALL_append = " busybox"
    IMAGE_INSTALL_append = " i2c-tools"

in local.conf produced the warnings

    WARNING: core-image-minimal-1.0-r0 do_rootfs: busybox.postinst returned 1, marking as unpacked only, configuration required on target.
    WARNING: core-image-minimal-1.0-r0 do_rootfs: Intentionally failing postinstall scriptlets of ['busybox'] to defer them to first boot is deprecated. Please place them into pkg_postinst_ontarget_${PN} ().
    If deferring to first boot wasn't the intent, then scriptlet failure may mean an issue in the recipe, or a regression elsewhere.
    Details of the failure are in /path/to/poky/build/tmp-glibc/work/qemux86-oe-linux/core-image-minimal/1.0-r0/temp/log.do_rootfs.
    WARNING: core-image-minimal-1.0-r0 do_rootfs: [log_check] core-image-minimal: found 1 warning message in the logfile:
    [log_check] WARNING: Intentionally failing postinstall scriptlets of ['busybox'] to defer them to first boot is deprecated. Please place them into pkg_postinst_ontarget_${PN} ().

where log.do_rootfs contained

    update-alternatives: Error: not linking /path/to/poky/build/tmp-glibc/work/qemux86-oe-linux/core-image-minimal/1.0-r0/rootfs/usr/sbin/i2cget to /bin/busybox.nosuid since /path/to/poky/build/tmp-glibc/work/qemux86-oe-linux/core-image-minimal/1.0-r0/rootfs/usr/sbin/i2cget exists and is not a link

and similarly for i2cset, i2cdump and i2cdetect when a workspace layer
created by devtool contained

    cat workspace/appends/busybox_%.bbappend
    FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"

    SRC_URI_append = " file://i2c.cfg"

and

    cat workspace/appends/busybox/i2c.cfg
    CONFIG_I2CGET=y
    CONFIG_I2CSET=y
    CONFIG_I2CDETECT=y
    CONFIG_I2CDUMP=y

(From OE-Core rev: 391f0fb76c286734cc9be57b825efe02b6999faf)

Signed-off-by: Hannu Lounento <hannu.lounento@vaisala.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Hannu Lounento
2018-05-24 12:18:37 +00:00
committed by Richard Purdie
parent ce12d183bb
commit 2a092f4aec
1 changed files with 9 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
meta/recipes-devtools/i2c-tools/i2c-tools_4.0.bb
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@@ -14,6 +14,8 @@ SRC_URI = "${KERNELORG_MIRROR}/software/utils/i2c-tools/${BP}.tar.gz \
SRC_URI[md5sum] = "d92a288d70f306d3895e3a7e9c14c9aa"
SRC_URI[sha256sum] = "5b60daf6f011de0acb61de57dba62f2054bb39f19961d67e0c91610f071ca403"
inherit update-alternatives
EXTRA_OEMAKE = "bindir=${bindir} sbindir=${sbindir} \
incdir=${includedir} libdir=${libdir} \
mandir=${mandir} \
@@ -34,3 +36,10 @@ RDEPENDS_${PN}-misc = "${PN} perl perl-module-posix \
perl-module-constant perl-module-file-basename \
perl-module-fcntl perl-module-strict perl-module-vars \
"
ALTERNATIVE_PRIORITY = "100"
ALTERNATIVE_${PN} = "i2cdetect i2cdump i2cget i2cset"
ALTERNATIVE_LINK_NAME[i2cdetect] = "${sbindir}/i2cdetect"
ALTERNATIVE_LINK_NAME[i2cdump] = "${sbindir}/i2cdump"
ALTERNATIVE_LINK_NAME[i2cget] = "${sbindir}/i2cget"
ALTERNATIVE_LINK_NAME[i2cset] = "${sbindir}/i2cset"