{"id":440,"date":"2023-06-14T20:05:35","date_gmt":"2023-06-15T04:05:35","guid":{"rendered":"http:\/\/bitas.net.cn\/?page_id=440"},"modified":"2023-06-14T20:06:09","modified_gmt":"2023-06-15T04:06:09","slug":"644-lk-kobject-example","status":"publish","type":"page","link":"http:\/\/bitas.net.cn\/index.php\/sourcecode\/644-lk-kobject-example\/","title":{"rendered":"644 (LK) kobject \u5b9e\u4f8b"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>\/*\n * kobject example\n *\/\n#include &lt;linux\/kobject.h>\n#include &lt;linux\/module.h>\n#include &lt;linux\/init.h>\n\nstatic struct kobject *kobj_a;\nstatic struct kobject *kobj_a1;\nstatic struct kobject *kobj_a2;\n\nstatic int __init example_init(void)\n{\n    \/* Create kobject \"ko_a\" under \/sys\/kernel\/ *\/\n    kobj_a = kobject_create_and_add(\"ko_a\", kernel_kobj);\n    if (!kobj_a)\n        goto err;\n\n    \/* Create kobject \"ko_a1\" under \/sys\/kernel\/ko_a\/ *\/\n    kobj_a1 = kobject_create_and_add(\"ko_a1\", kobj_a);\n    if (!kobj_a1)\n        goto err_a1;\n\n    \/* Create kobject \"ko_a2\" under \/sys\/kernel\/ko_a\/ *\/\n    kobj_a2 = kobject_create_and_add(\"ko_a2\", kobj_a);\n    if (!kobj_a2)\n        goto err_a2;\n\n    return 0;\n\nerr_a2:\n    kobject_put(kobj_a1);\nerr_a1:\n    kobject_put(kobj_a);\nerr:\n    return -EINVAL;\n}\n\nstatic void __exit example_exit(void)\n{\n    kobject_put(kobj_a2);\n    kobject_put(kobj_a1);\n    kobject_put(kobj_a);\n}\n\nmodule_init(example_init);\nmodule_exit(example_exit);\nMODULE_LICENSE(\"GPL\");<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":127,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-440","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/bitas.net.cn\/index.php\/wp-json\/wp\/v2\/pages\/440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bitas.net.cn\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/bitas.net.cn\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/bitas.net.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/bitas.net.cn\/index.php\/wp-json\/wp\/v2\/comments?post=440"}],"version-history":[{"count":1,"href":"http:\/\/bitas.net.cn\/index.php\/wp-json\/wp\/v2\/pages\/440\/revisions"}],"predecessor-version":[{"id":441,"href":"http:\/\/bitas.net.cn\/index.php\/wp-json\/wp\/v2\/pages\/440\/revisions\/441"}],"up":[{"embeddable":true,"href":"http:\/\/bitas.net.cn\/index.php\/wp-json\/wp\/v2\/pages\/127"}],"wp:attachment":[{"href":"http:\/\/bitas.net.cn\/index.php\/wp-json\/wp\/v2\/media?parent=440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}