NCH
char ibuf[NCH];
char obuf[NCH * 4];
char rbuf[NCH * 4];
cdev_ch_init(NCH,ch), /* 14: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 17: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 27: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 17: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 13: SCSI changer */
cdev_ch_init(NCH,ch), /* 17: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 27: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 36: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 44: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 36: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 68: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 17: SCSI autochanger */
cdev_ch_init(NCH,ch), /* 19: SCSI autochanger */