[OpenWrt-Devel] [PATCH] hotplug: Allow renaming wireless phy devices.

[greearb at candelatech.com]

From: Ben Greear <greearb at candelatech.com>

uci set wireless. at wifi-device[0].phyname=wiphy0

Then reboot and/or re-plug that device, and this will
name the phy wiphy0 instead of phy0, phy1, etc.

This can help keep phy names consistent through driver reloads
which may make the system easier to configure properly or to
make different systems have the same naming (where wiphy0 is always
the 2.4Ghz radio, for instance).

Signed-off-by: Ben Greear <greearb at candelatech.com>
---
 .../kernel/mac80211/files/mac80211.hotplug    | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/package/kernel/mac80211/files/mac80211.hotplug b/package/kernel/mac80211/files/mac80211.hotplug
index b865552661..a394e3195e 100644
--- a/package/kernel/mac80211/files/mac80211.hotplug
+++ b/package/kernel/mac80211/files/mac80211.hotplug
@@ -3,3 +3,35 @@
 [ "${ACTION}" = "add" ] && {
 	/sbin/wifi config
 }
+
+
+OPATH=${DEVPATH##/devices/platform/}
+OPATH=${OPATH%%/ieee*}
+
+# For USB, OPATH looks like this at this point in this script:
+# soc/soc:usb30 at 0/11000000.dwc3/xhci-hcd.0.auto/usb1/1-1/1-1:1.0
+# But, the uci path has a platform/ prefix on that:
+# platform/soc/soc:usb30 at 0/11000000.dwc3/xhci-hcd.0.auto/usb1/1-1/1-1:1.0
+OPATH_USB="platform/$OPATH";
+
+# 10 radios is enough for anyone!
+#echo "fix-wifi-mac, OPATH: $OPATH" >> /tmp/foo.txt
+for i in `seq 0 9`;
+  do
+  BUS=`uci get wireless. at wifi-device[$i].path`
+  #echo "fix-wifi-mac, BUS[$i]: $BUS" >> /tmp/foo.txt
+  if [ "$BUS " == "$OPATH " ] || [ "$BUS " == "$OPATH_USB " ]
+      then
+      PHYNAME=${DEVPATH##*ieee80211/}
+      NPHYNAME=`uci get wireless. at wifi-device[$i].phyname`
+      #echo "fix-wifi-mac, PHYNAME[$i]: $PHYNAME  NPHYNAME: $NPHYNAME" >> /tmp/foo.txt;
+      if [ "$NPHYNAME " != " " ]
+          then
+          if [ "$PHYNAME " != "$NPHYNAME " ]
+              then
+	      #echo "fix-wifi-mac, renaming..." >> /tmp/foo.txt;
+              iw $PHYNAME set name $NPHYNAME
+          fi
+      fi
+  fi
+done
-- 
2.19.2


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