1 files changed, 60 insertions, 0 deletions
diff --git a/include/linux/usb/tty_diag.h b/include/linux/usb/tty_diag.h
new file mode 100644
index 00000000..665f77ac
--- /dev/null
+++ b/include/linux/usb/tty_diag.h
@@ -0,0 +1,60 @@
+#ifndef _DRIVERS_TTY_DIAG_H_
+#define _DRIVERS_TTY_DIAG_H_
+
+#ifdef CONFIG_DIAG_OVER_USB
+#include <linux/usb/usbdiag.h>
+#endif
+
+#ifdef CONFIG_DIAG_OVER_TTY
+struct usb_diag_ch *tty_diag_channel_open(const char *name, void *priv,
+		void (*notify)(void *, unsigned, struct diag_request *));
+void tty_diag_channel_close(struct usb_diag_ch *diag_ch);
+int tty_diag_channel_read(struct usb_diag_ch *diag_ch,
+				struct diag_request *d_req);
+int tty_diag_channel_write(struct usb_diag_ch *diag_ch,
+				struct diag_request *d_req);
+void tty_diag_channel_abandon_request(void);
+int tty_diag_get_dbg_ftm_flag_value(void);
+int tty_diag_set_dbg_ftm_flag_value(int val);
+#else
+static inline struct usb_diag_ch *tty_diag_channel_open(const char *name,
+		void *priv,
+		void (*notify)(void *, unsigned, struct diag_request *))
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline void tty_diag_channel_close(struct usb_diag_ch *diag_ch)
+{
+}
+
+static inline int tty_diag_channel_read(struct usb_diag_ch *diag_ch,
+				struct diag_request *d_req)
+{
+	return -ENODEV;
+}
+
+static inline int tty_diag_channel_write(struct usb_diag_ch *diag_ch,
+				struct diag_request *d_req)
+{
+	return -ENODEV;
+}
+
+static inline void tty_diag_channel_abandon_request(void)
+{
+	return -ENODEV;
+}
+
+static inline int tty_diag_get_dbg_ftm_flag_value(void)
+{
+	return -ENODEV;
+}
+
+static inline int tty_diag_set_dbg_ftm_flag_value(int val)
+{
+	return -ENODEV;
+}
+
+#endif
+
+#endif /* _DRIVERS_TTY_DIAG_H_ */