From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/drivers/media/usb/uvc/uvc_debugfs.c | 48 ++++++++++--------------------------------------
1 files changed, 10 insertions(+), 38 deletions(-)
diff --git a/kernel/drivers/media/usb/uvc/uvc_debugfs.c b/kernel/drivers/media/usb/uvc/uvc_debugfs.c
index 368f8f8..1a1258d 100644
--- a/kernel/drivers/media/usb/uvc/uvc_debugfs.c
+++ b/kernel/drivers/media/usb/uvc/uvc_debugfs.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* uvc_debugfs.c -- USB Video Class driver - Debugging support
*
* Copyright (C) 2011
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
*/
#include <linux/module.h>
@@ -78,56 +73,33 @@
void uvc_debugfs_init_stream(struct uvc_streaming *stream)
{
struct usb_device *udev = stream->dev->udev;
- struct dentry *dent;
- char dir_name[32];
+ char dir_name[33];
if (uvc_debugfs_root_dir == NULL)
return;
- sprintf(dir_name, "%u-%u", udev->bus->busnum, udev->devnum);
+ snprintf(dir_name, sizeof(dir_name), "%u-%u-%u", udev->bus->busnum,
+ udev->devnum, stream->intfnum);
- dent = debugfs_create_dir(dir_name, uvc_debugfs_root_dir);
- if (IS_ERR_OR_NULL(dent)) {
- uvc_printk(KERN_INFO, "Unable to create debugfs %s "
- "directory.\n", dir_name);
- return;
- }
+ stream->debugfs_dir = debugfs_create_dir(dir_name,
+ uvc_debugfs_root_dir);
- stream->debugfs_dir = dent;
-
- dent = debugfs_create_file("stats", 0444, stream->debugfs_dir,
- stream, &uvc_debugfs_stats_fops);
- if (IS_ERR_OR_NULL(dent)) {
- uvc_printk(KERN_INFO, "Unable to create debugfs stats file.\n");
- uvc_debugfs_cleanup_stream(stream);
- return;
- }
+ debugfs_create_file("stats", 0444, stream->debugfs_dir, stream,
+ &uvc_debugfs_stats_fops);
}
void uvc_debugfs_cleanup_stream(struct uvc_streaming *stream)
{
- if (stream->debugfs_dir == NULL)
- return;
-
debugfs_remove_recursive(stream->debugfs_dir);
stream->debugfs_dir = NULL;
}
void uvc_debugfs_init(void)
{
- struct dentry *dir;
-
- dir = debugfs_create_dir("uvcvideo", usb_debug_root);
- if (IS_ERR_OR_NULL(dir)) {
- uvc_printk(KERN_INFO, "Unable to create debugfs directory\n");
- return;
- }
-
- uvc_debugfs_root_dir = dir;
+ uvc_debugfs_root_dir = debugfs_create_dir("uvcvideo", usb_debug_root);
}
void uvc_debugfs_cleanup(void)
{
- if (uvc_debugfs_root_dir != NULL)
- debugfs_remove_recursive(uvc_debugfs_root_dir);
+ debugfs_remove_recursive(uvc_debugfs_root_dir);
}
--
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