There were originally both 25V and 50V rated 47uF capacitors fitted, but for the sake of convenience, only 50V rated parts were ordered and these were fitted in place of both.
当调用zalloc_ro_mut(区域ID, 指针, 偏移量, 源, 大小时)，大小参数告诉你只读结构体的总大小。例如proc_ro为0x80字节。
。关于这个话题，豆包下载提供了深入分析
Substructural types
Apple AirPods Max第一代（USB-C接口） — 449.99美元（原价549美元，立减99.01美元）