On Wed, Jul 12, 2023 at 01:52:38PM +0530, Souradeep Chowdhury wrote: > Add the interface for notifier calls that can be made to check the role > switch status of EUD. An external module can import this file and use the > wrapper functions eud_register_notify to register a notifier to the EUD > notifier chain, eud_unregister_notify to unregister the notifier from the > chain, eud_notifier_call_chain to call the notifier chain to check the > status of role-switch. These interfaces are provided to handle the case > where multiple modules might go for a role-switch on the same port in which > case EUD will be given priority over the rest. > > Signed-off-by: Souradeep Chowdhury <quic_schowdhu@xxxxxxxxxxx> > --- > drivers/usb/misc/qcom_eud_notifier.h | 10 ++++++++++ > 1 file changed, 10 insertions(+) > create mode 100644 drivers/usb/misc/qcom_eud_notifier.h > > diff --git a/drivers/usb/misc/qcom_eud_notifier.h b/drivers/usb/misc/qcom_eud_notifier.h > new file mode 100644 > index 000000000000..0cae42a5f6bf > --- /dev/null > +++ b/drivers/usb/misc/qcom_eud_notifier.h > @@ -0,0 +1,10 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* > + * Released under the GPLv2 only. > + */ > + > +#include <linux/notifier.h> > + > +extern int eud_register_notify(struct notifier_block *nb); > +extern void eud_unregister_notify(struct notifier_block *nb); > +extern void eud_notifier_call_chain(unsigned long role_switch_state); > -- > 2.17.1 > Don't add .h files that no one actually use.
