DEVCG_ACC_READ
((mode & BLK_OPEN_READ) ? DEVCG_ACC_READ : 0) |
DEVCG_ACC_WRITE | DEVCG_ACC_READ);
access |= DEVCG_ACC_READ;
#define DEVCG_ACC_MASK (DEVCG_ACC_MKNOD | DEVCG_ACC_READ | DEVCG_ACC_WRITE)
if (access & DEVCG_ACC_READ)
ex.access |= DEVCG_ACC_READ;