[openwrt/openwrt] kernel: lantiq: ltq-vmmc: introduce user group for vmmc

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/37bbed6f95856a507d727ffc863b20f8a8b35332

commit 37bbed6f95856a507d727ffc863b20f8a8b35332
Author: Daniel Golle <daniel at makrotopia.org>
AuthorDate: Sun Mar 3 15:22:54 2024 +0000

    kernel: lantiq: ltq-vmmc: introduce user group for vmmc
    
    asterisk-chan-lantiq is by now the only user of the VMMC interface.
    And asterisk runs as user 'asterisk' which doesn't give it permission
    to open the /dev/vmmc* devices.
    Introduce a new user group 'vmmc' and give permission to access the
    /dev/vmmc* devices to that group.
    Another commit for asterisk-chan-lantiq will add the 'asterisk' user
    to that group.
    
    Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 package/kernel/lantiq/ltq-vmmc/Makefile        | 1 +
 package/kernel/lantiq/ltq-vmmc/files/vmmc.init | 1 +
 2 files changed, 2 insertions(+)

diff --git a/package/kernel/lantiq/ltq-vmmc/Makefile b/package/kernel/lantiq/ltq-vmmc/Makefile
index c96cee819b..4972f1c374 100644
--- a/package/kernel/lantiq/ltq-vmmc/Makefile
+++ b/package/kernel/lantiq/ltq-vmmc/Makefile
@@ -29,6 +29,7 @@ define KernelPackage/ltq-vmmc
   DEPENDS:=@(TARGET_lantiq_xway||TARGET_lantiq_xrx200) +kmod-ltq-tapi
   FILES:=$(PKG_BUILD_DIR)/src/drv_vmmc.ko
   AUTOLOAD:=$(call AutoProbe,drv_vmmc)
+  USERID:=:vmmc=386
 endef
 
 define KernelPackage/ltq-vmmc/description
diff --git a/package/kernel/lantiq/ltq-vmmc/files/vmmc.init b/package/kernel/lantiq/ltq-vmmc/files/vmmc.init
index 402376e294..78efe80b98 100644
--- a/package/kernel/lantiq/ltq-vmmc/files/vmmc.init
+++ b/package/kernel/lantiq/ltq-vmmc/files/vmmc.init
@@ -8,6 +8,7 @@ start() {
 	for i in 10 11 12 13 14 15 16 17 18; do
 		if ! [ -e /dev/vmmc$i ]; then
 			mknod -m 664 /dev/vmmc$i c 122 $i
+			chown root:vmmc /dev/vmmc$i
 		fi
 	done
 }