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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>
This commit is contained in:
Greg Kroah-Hartman 2016-01-11 19:24:54 -08:00
parent 14006ab2f5
commit de14131449
1 changed files with 4 additions and 0 deletions
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4
drivers/staging/greybus/core.c
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@ -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) {