From: Greg Kroah-Hartman <gregkh@google.com>
Date: Tue, 12 Jan 2016 03:24:54 +0000 (-0800)
Subject: greybus: uevent: add GREYBUS_ID to uevent
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=de141314498b3e52cec7a0e5100e4dd278bde4c7;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

greybus: uevent: add GREYBUS_ID to uevent

This adds the GREYBUS_ID environment variable to all interface uevents
to let userspace know the vendor/product id of the module interface that
has been added or removed from the system.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
---

diff --git a/drivers/staging/greybus/core.c b/drivers/staging/greybus/core.c
index 6b31155d4a9c..0e2f99df6cfa 100644
--- a/drivers/staging/greybus/core.c
+++ b/drivers/staging/greybus/core.c
@@ -110,6 +110,10 @@ static int greybus_uevent(struct device *dev, struct kobj_uevent_env *env)
 	if (intf) {
 		if (add_uevent_var(env, "INTERFACE=%u", intf->interface_id))
 			return -ENOMEM;
+		if (add_uevent_var(env, "GREYBUS_ID=%04x/%04x",
+				   (u16)(intf->vendor_id & 0xffff),
+				   (u16)(intf->product_id & 0xffff)))
+			return -ENOMEM;
 	}
 
 	if (bundle) {