diff options
Diffstat (limited to 'sys/kern/kern_conf.c')
| -rw-r--r-- | sys/kern/kern_conf.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/sys/kern/kern_conf.c b/sys/kern/kern_conf.c index 2f6dad1..b403dbf 100644 --- a/sys/kern/kern_conf.c +++ b/sys/kern/kern_conf.c @@ -30,7 +30,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: kern_conf.c,v 1.8 1995/12/21 20:09:39 julian Exp $ + * $Id: kern_conf.c,v 1.9 1995/12/22 15:56:33 phk Exp $ */ #include <sys/param.h> @@ -157,3 +157,37 @@ int TTYPE##_add(dev_t *descrip, \ ADDENTRY(bdevsw, nblkdev) ADDENTRY(cdevsw, nchrdev) + +void +cdevsw_make(struct bdevsw *from) +{ + struct cdevsw *to = from->d_cdev; + + if (!to) + panic("No target cdevsw in bdevsw"); + to->d_open = from->d_open; + to->d_close = from->d_close; + to->d_read = rawread; + to->d_write = rawwrite; + to->d_ioctl = from->d_ioctl; + to->d_stop = nostop; + to->d_reset = nullreset; + to->d_devtotty = nodevtotty; + to->d_select = seltrue; + to->d_mmap = nommap; + to->d_strategy = from->d_strategy; + to->d_name = from->d_name; + to->d_bdev = from; + to->d_maj = -1; +} + +void +bdevsw_add_generic(int bdev, int cdev, struct bdevsw *bdevsw) +{ + dev_t dev; + cdevsw_make(bdevsw); + dev = makedev(cdev, 0); + cdevsw_add(&dev, bdevsw->d_cdev, NULL); + dev = makedev(bdev, 0); + bdevsw_add(&dev, bdevsw , NULL); +} |
