int bdwrite(bufptr bp)
{
uint16_t dev = bp->bf_dev;
validchk(dev, PANIC_BDW);
bdsetup(bp);
return ((*dev_tab[major(dev)].dev_write) (minor(dev), 0, 0));
}
int bdread(bufptr bp)
{
uint16_t dev = bp->bf_dev;
validchk(dev, PANIC_BDR);
bdsetup(bp);
return ((*dev_tab[major(dev)].dev_read) (minor(dev), 0, 0));
}
int d_close(uint16_t dev)
{
validchk(dev, PANIC_DCL);
bdrop(dev);
return (*dev_tab[major(dev)].dev_close) (minor(dev));
}
int cdwrite(uint16_t dev, uint8_t flag)
{
validchk(dev, PANIC_CDW);
return ((*dev_tab[major(dev)].dev_write) (minor(dev), 1, flag));
}
int cdread(uint16_t dev, uint8_t flag)
{
validchk(dev, PANIC_CDR);
return ((*dev_tab[major(dev)].dev_read) (minor(dev), 1, flag));
}
