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ioremap锛堬級锛氱墿鐞嗗湴鍧€鏄犲皠鍒拌櫅鎿湴鍧€銆� 绋嬪簭婧愪唬纰煎涓嬶細 閫欏氨瀹屾垚浜嗚ō(sh猫)鍌欓﹨(q奴)鍕�(d貌ng)鐨勫垵濮嬪寲銆傝ō(sh猫)鍌欓﹨(q奴)鍕�(d貌ng)鐨勫嵏杓夐儴鍒嗚垏鍒濆鍖栫▼搴忕浉鍙�锛屽嵏杓夋槸鍥炴敹鍒嗛厤绲﹁ō(sh猫)鍌欓﹨(q奴)鍕�(d貌ng)绋嬪簭鐨勫悇绋硣婧愩€俢leanup_module锛堬級涓垎鍒ヨ(di脿o)鐢細 iounmap锛堬級锛氶噵鏀捐櫅鍧€锛� release_mem_region锛堬級锛氶噵鏀惧収(n猫i)瀛樺崁(q奴)鍩燂紱 free_irq锛堬級锛氶噵鏀句腑鏂烽€氶亾銆� 绋嬪簭婧愪唬纰煎涓嬶細 3.2.2 璁€鍑芥暩(sh霉)瀵�(sh铆)鐝�(xi脿n) 璁€鍑芥暩(sh霉)瀹氱京浜嗗皪(du矛)闆欏彛RAM鐨勮畝鍙栭亷(gu貌)绋�锛屾簮浠ｇ⒓濡備笅锛� 鍏朵腑copy_to_user灏囧収(n猫i)鏍稿嚱鏁�(sh霉)灏囪櫅鎿湴鍧€pPxp-VirtStartAddr涓婄殑count鍊�(g猫)鏁�(sh霉)鎿�(j霉)鎷疯矟鍒癰uf鎸囬嚌鎸囧悜鐨勭敤鎴剁┖闁撲笂銆備箣鍓嶈ō(sh猫)鍌欑殑閰嶇疆鍜屽垵濮嬪寲鍑芥暩(sh霉)ink_module锛堬級涓殑ioremap锛堬級鍑芥暩(sh霉)宸茬稉(j墨ng)灏囬洐鍙AM鐗╃悊鍦板潃鏄犲皠鍒拌櫅鎿湴鍧€pPxpVirtStartAddr涓�锛屽洜姝ゅ彲浠ラ€氶亷(gu貌)pxp_read锛堬級鍑芥暩(sh霉)璁€鍙栭洐鍙AM銆� 3.2.3 瀵�(xi臎)鍑芥暩(sh霉)瀵�(sh铆)鐝�(xi脿n) 瀵�(xi臎)闆欏彛RAM鏅�(sh铆)瑾�(di脿o)鐢╬xp201_write锛堬級鍑芥暩(sh霉)锛屽叾鍘熺悊鑸囪畝闆欏彛RAM鐩镐技锛屽彧鏄痯xp201_write锛堬級鍑芥暩(sh霉)涓(di脿o)鐢ㄤ簡copy_from_user锛堬級鍏�(n猫i)鏍稿嚱鏁�(sh霉)銆� 3.2.4 open鍑芥暩(sh霉)鑸噐elease鍑芥暩(sh霉)瀵�(sh铆)鐝�(xi脿n) pxp_open锛堬級鍑芥暩(sh霉)鐨勫(sh铆)鐝�(xi脿n)濡備笅锛屽叾涓娇鐢∕OD_INC_USE_COUNT閬炲瑷�(sh猫)鍌欑殑寮曠敤瑷�(j矛)鏁�(sh霉)銆� 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