这篇教程C++ to_video_device函数代码示例写得很实用，希望能帮到您。
本文整理汇总了C++中to_video_device函数的典型用法代码示例。如果您正苦于以下问题：C++ to_video_device函数的具体用法？C++ to_video_device怎么用？C++ to_video_device使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。 在下文中一共展示了to_video_device函数的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。 示例1: show_namestatic ssize_t show_name(struct device *cd, struct device_attribute *attr, char *buf){ struct video_device *vdev = to_video_device(cd); return sprintf(buf, "%.*s/n", (int)sizeof(vdev->name), vdev->name);}
开发者ID:Kratos1982，项目名称:UbuntuTouch，代码行数:7，
示例2: show_debugstatic ssize_t show_debug(struct device *cd, struct device_attribute *attr, char *buf){ struct video_device *vdev = to_video_device(cd); return sprintf(buf, "%i/n", vdev->debug);}
开发者ID:Kratos1982，项目名称:UbuntuTouch，代码行数:7，
示例3: index_showstatic ssize_t index_show(struct device *cd, struct device_attribute *attr, char *buf){ struct video_device *vdev = to_video_device(cd); return sprintf(buf, "%i/n", vdev->index);}
开发者ID:AshishNamdev，项目名称:linux，代码行数:7，
示例4: v4l2_device_release/* Called when the last user of the video device exits. */static void v4l2_device_release(struct device *cd){ struct video_device *vdev = to_video_device(cd); struct v4l2_device *v4l2_dev = vdev->v4l2_dev; mutex_lock(&videodev_lock); if (video_device[vdev->minor] != vdev) { mutex_unlock(&videodev_lock); /* should not happen */ WARN_ON(1); return; } /* Free up this device for reuse */ video_device[vdev->minor] = NULL; /* Delete the cdev on this minor as well */ cdev_del(vdev->cdev); /* Just in case some driver tries to access this from the release() callback. */ vdev->cdev = NULL; /* Mark device node number as free */ devnode_clear(vdev); mutex_unlock(&videodev_lock); /* Release video_device and perform other cleanups as needed. */ vdev->release(vdev); /* Decrease v4l2_device refcount */ if (v4l2_dev) v4l2_device_put(v4l2_dev);}
开发者ID:n3ocort3x，项目名称:one_x_2.6，代码行数:36，
示例5: v4l2_device_release/* Called when the last user of the video device exits. */static void v4l2_device_release(struct device *cd){ struct video_device *vdev = to_video_device(cd); struct v4l2_device *v4l2_dev = vdev->v4l2_dev; mutex_lock(&videodev_lock); if (WARN_ON(video_device[vdev->minor] != vdev)) { /* should not happen */ mutex_unlock(&videodev_lock); return; } /* Free up this device for reuse */ video_device[vdev->minor] = NULL; /* Delete the cdev on this minor as well */ cdev_del(vdev->cdev); /* Just in case some driver tries to access this from the release() callback. */ vdev->cdev = NULL; /* Mark device node number as free */ devnode_clear(vdev); mutex_unlock(&videodev_lock);#if defined(CONFIG_MEDIA_CONTROLLER) if (v4l2_dev->mdev) { /* Remove interfaces and interface links */ media_devnode_remove(vdev->intf_devnode); if (vdev->entity.function != MEDIA_ENT_F_UNKNOWN) media_device_unregister_entity(&vdev->entity); }#endif /* Do not call v4l2_device_put if there is no release callback set. * Drivers that have no v4l2_device release callback might free the * v4l2_dev instance in the video_device release callback below, so we * must perform this check here. * * TODO: In the long run all drivers that use v4l2_device should use the * v4l2_device release callback. This check will then be unnecessary. */ if (v4l2_dev->release == NULL) v4l2_dev = NULL; /* Release video_device and perform other cleanups as needed. */ vdev->release(vdev); /* Decrease v4l2_device refcount */ if (v4l2_dev) v4l2_device_put(v4l2_dev);}
开发者ID:AshishNamdev，项目名称:linux，代码行数:55，
示例6: debug_storestatic ssize_t debug_store(struct device *cd, struct device_attribute *attr, const char *buf, size_t len){ struct video_device *vdev = to_video_device(cd); int res = 0; u16 value; res = kstrtou16(buf, 0, &value); if (res) return res; vdev->debug = value; return len;}
开发者ID:adbensi，项目名称:kernel-odroidc-3.10.80-rt102，代码行数:14，
示例7: v4l2_device_release/* Called when the last user of the video device exits. */static void v4l2_device_release(struct device *cd){ struct video_device *vdev = to_video_device(cd); struct v4l2_device *v4l2_dev = vdev->v4l2_dev; mutex_lock(&videodev_lock); if (video_device[vdev->minor] != vdev) { mutex_unlock(&videodev_lock); /* should not happen */ WARN_ON(1); return; } /* Free up this device for reuse */ video_device[vdev->minor] = NULL; /* Delete the cdev on this minor as well */ cdev_del(vdev->cdev); /* Just in case some driver tries to access this from the release() callback. */ vdev->cdev = NULL; /* Mark device node number as free */ devnode_clear(vdev); mutex_unlock(&videodev_lock);#if defined(CONFIG_MEDIA_CONTROLLER) if (vdev->v4l2_dev && vdev->v4l2_dev->mdev && vdev->vfl_type != VFL_TYPE_SUBDEV) media_device_unregister_entity(&vdev->entity);#endif /* Release video_device and perform other cleanups as needed. */ vdev->release(vdev); /* Decrease v4l2_device refcount */ if (v4l2_dev) v4l2_device_put(v4l2_dev);}
开发者ID:gcloudspider，项目名称:linux-tbs-drivers，代码行数:42，
注：本文中的to_video_device函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。
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