disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/media/usb/dvb-usb/dvb-usb.h
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@@ -129,6 +129,9 @@
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  * @frontend_ctrl: called to power on/off active frontend.
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  * @streaming_ctrl: called to start and stop the MPEG2-TS streaming of the
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  *  device (not URB submitting/killing).
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+ *  This callback will be called without data URBs being active - data URBs
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+ *  will be submitted only after streaming_ctrl(1) returns successfully and
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+ *  they will be killed before streaming_ctrl(0) gets called.
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  * @pid_filter_ctrl: called to en/disable the PID filter, if any.
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  * @pid_filter: called to set/unset a PID for filtering.
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  * @frontend_attach: called to attach the possible frontends (fill fe-field
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@@ -234,6 +237,11 @@
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  *
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  * @size_of_priv: how many bytes shall be allocated for the private field
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  *  of struct dvb_usb_device.
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+ * @priv_init: optional callback to initialize the variable that private field
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+ * of struct dvb_usb_device has pointer to just after it had been allocated and
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+ * zeroed.
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+ * @priv_destroy: just like priv_init, only called before deallocating
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+ * the memory pointed by private field of struct dvb_usb_device.
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  *
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  * @power_ctrl: called to enable/disable power of the device.
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  * @read_mac_address: called to read the MAC address of the device.
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@@ -275,14 +283,18 @@
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 	int        no_reconnect;
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 	int size_of_priv;
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+	int (*priv_init)(struct dvb_usb_device *);
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+	void (*priv_destroy)(struct dvb_usb_device *);
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 	int num_adapters;
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 	struct dvb_usb_adapter_properties adapter[MAX_NO_OF_ADAPTER_PER_DEVICE];
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 	int (*power_ctrl)       (struct dvb_usb_device *, int);
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 	int (*read_mac_address) (struct dvb_usb_device *, u8 []);
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-	int (*identify_state)   (struct usb_device *, struct dvb_usb_device_properties *,
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-			struct dvb_usb_device_description **, int *);
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+	int (*identify_state)(struct usb_device *udev,
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+			      const struct dvb_usb_device_properties *props,
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+			      const struct dvb_usb_device_description **desc,
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+			      int *cold);
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 	struct {
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 		enum dvb_usb_mode mode;	/* Drivers shouldn't touch on it */
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@@ -336,7 +348,7 @@
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  * struct dvb_usb_adapter - a DVB adapter on a USB device
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  * @id: index of this adapter (starting with 0).
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  *
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- * @feedcount: number of reqested feeds (used for streaming-activation)
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+ * @feedcount: number of requested feeds (used for streaming-activation)
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  * @pid_filtering: is hardware pid_filtering used or not.
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  *
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  * @pll_addr: I2C address of the tuner for programming
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@@ -426,7 +438,7 @@
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  */
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 struct dvb_usb_device {
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 	struct dvb_usb_device_properties props;
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-	struct dvb_usb_device_description *desc;
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+	const struct dvb_usb_device_description *desc;
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 	struct usb_device *udev;
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@@ -463,7 +475,7 @@
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 };
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 extern int dvb_usb_device_init(struct usb_interface *,
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-			       struct dvb_usb_device_properties *,
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+			       const struct dvb_usb_device_properties *,
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 			       struct module *, struct dvb_usb_device **,
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 			       short *adapter_nums);
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 extern void dvb_usb_device_exit(struct usb_interface *);