This is a first attempt to create an `improved' driver for the Mitsumi drives. It is able to "live together" with mcd.c, if you have at least two Mitsumi drives: each driver can use its own drive. To allow this "coexistence" as long as mcdx.c is not a superset of mcd.c, this driver has to use its own device files. We use MAJOR 20 for it. So, you have to do # mknod /dev/mcdx0 b 20 0 # mknod /dev/mcdx1 b 20 1 and so on, one entry for each drive to support, once. If you are using the driver as a module, you can specify your ports and IRQs like # insmod mcdx.o mcdx=0x300,11,0x304,5 and so on ("address,IRQ" pairs). This will override the configuration in mcdx.h. This driver: o handles XA and (hopefully) multi session CDs as well as ordinary CDs; o supports up to 5 drives (of course, you'll need free IRQs, i/o ports and slots); o uses much less kernel memory than the standard mcd driver (no extra driver internal buffers!). o plays audio (like the `old' driver, I hope) This version doesn't support yet: o shared IRQs (but it seems to be possible - I've successfully connected two drives to the same irq. So it's `only' a problem of the driver.) This driver never will: o Read digital audio (i.e. copy directly), due to missing hardware features. heiko@lotte.sax.de