add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/usb/misc/ldusb.c
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@@ -1,5 +1,5 @@
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 // SPDX-License-Identifier: GPL-2.0+
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-/**
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+/*
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  * Generic USB driver for report based interrupt in/out devices
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  * like LD Didactic's USB devices. LD Didactic's USB devices are
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  * HID devices which do not use HID report definitons (they use
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@@ -184,7 +184,7 @@
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 static struct usb_driver ld_usb_driver;
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-/**
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+/*
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  *	ld_usb_abort_transfers
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  *      aborts transfers and frees associated data structures
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  */
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@@ -199,7 +199,7 @@
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 		usb_kill_urb(dev->interrupt_out_urb);
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 }
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-/**
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+/*
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  *	ld_usb_delete
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  */
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 static void ld_usb_delete(struct ld_usb *dev)
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@@ -213,7 +213,7 @@
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 	kfree(dev);
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 }
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-/**
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+/*
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  *	ld_usb_interrupt_in_callback
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  */
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 static void ld_usb_interrupt_in_callback(struct urb *urb)
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@@ -274,7 +274,7 @@
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 	wake_up_interruptible(&dev->read_wait);
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 }
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-/**
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+/*
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  *	ld_usb_interrupt_out_callback
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  */
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 static void ld_usb_interrupt_out_callback(struct urb *urb)
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@@ -294,7 +294,7 @@
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 	wake_up_interruptible(&dev->write_wait);
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 }
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-/**
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+/*
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  *	ld_usb_open
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  */
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 static int ld_usb_open(struct inode *inode, struct file *file)
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@@ -304,7 +304,7 @@
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 	int retval;
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 	struct usb_interface *interface;
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-	nonseekable_open(inode, file);
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+	stream_open(inode, file);
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 	subminor = iminor(inode);
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 	interface = usb_find_interface(&ld_usb_driver, subminor);
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@@ -365,7 +365,7 @@
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 	return retval;
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 }
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-/**
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+/*
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  *	ld_usb_release
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  */
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 static int ld_usb_release(struct inode *inode, struct file *file)
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@@ -407,7 +407,7 @@
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 	return retval;
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 }
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-/**
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+/*
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  *	ld_usb_poll
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  */
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 static __poll_t ld_usb_poll(struct file *file, poll_table *wait)
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@@ -431,7 +431,7 @@
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 	return mask;
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 }
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-/**
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+/*
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  *	ld_usb_read
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  */
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 static ssize_t ld_usb_read(struct file *file, char __user *buffer, size_t count,
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@@ -518,7 +518,7 @@
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 	return retval;
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 }
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-/**
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+/*
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  *	ld_usb_write
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  */
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 static ssize_t ld_usb_write(struct file *file, const char __user *buffer,
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@@ -641,7 +641,7 @@
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 	.minor_base =	USB_LD_MINOR_BASE,
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 };
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-/**
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+/*
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  *	ld_usb_probe
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  *
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  *	Called by the usb core when a new device is connected that it thinks
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@@ -745,7 +745,7 @@
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 	return retval;
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 }
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-/**
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+/*
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  *	ld_usb_disconnect
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  *
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  *	Called by the usb core when the device is removed from the system.