ID_SEL_BEGIN
#define MAX_DEV_NUM (31 - ID_SEL_BEGIN)
addr = (1 << (device + ID_SEL_BEGIN)) | (function << 8) | reg;
#define MAX_DEV_NUM (31 - ID_SEL_BEGIN)
addr = (1 << (device + ID_SEL_BEGIN)) | (function << 8) | reg;