diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2021-05-25 16:53:05 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-27 09:17:18 +0200 |
| commit | 73e33008e865e5a7b79282331c2d6e920d5d47f8 (patch) | |
| tree | c87cb860d513d1daf9143439ee66322dd21bd2fb /include/linux/usb/role.h | |
| parent | a0765597c986ad52c9bc93319987d41bc17f59ef (diff) | |
usb: roles: add helper usb_role_string()
Introduces usb_role_string() function, which returns a
human-readable name of provided usb role, it's useful to
make the log readable.
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1621932786-9335-1-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb/role.h')
| -rw-r--r-- | include/linux/usb/role.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/usb/role.h b/include/linux/usb/role.h index 0164fed31b06..031f148ab373 100644 --- a/include/linux/usb/role.h +++ b/include/linux/usb/role.h @@ -65,6 +65,7 @@ void usb_role_switch_unregister(struct usb_role_switch *sw); void usb_role_switch_set_drvdata(struct usb_role_switch *sw, void *data); void *usb_role_switch_get_drvdata(struct usb_role_switch *sw); +const char *usb_role_string(enum usb_role role); #else static inline int usb_role_switch_set_role(struct usb_role_switch *sw, enum usb_role role) @@ -109,6 +110,11 @@ static inline void *usb_role_switch_get_drvdata(struct usb_role_switch *sw) return NULL; } +static inline const char *usb_role_string(enum usb_role role) +{ + return "unknown"; +} + #endif #endif /* __LINUX_USB_ROLE_H */ |