1 This is a first attempt to create an `improved' driver for the Mitsumi drives.
2 It is able to "live together" with mcd.c, if you have at least two Mitsumi
3 drives: each driver can use its own drive.
4
5 To allow this "coexistence" as long as mcdx.c is not a superset of mcd.c,
6 this driver has to use its own device files. We use MAJOR 20 for it. So,
7 you have to do
8
9 # mknod /dev/mcdx0 b 20 0
10 # mknod /dev/mcdx1 b 20 1
11
12 and so on, one entry for each drive to support, once.
13
14 If you are using the driver as a module, you can specify your ports and IRQs
15 like
16
17 # insmod mcdx.o mcdx=0x300,11,0x304,5
18
19 and so on ("address,IRQ" pairs).
20 This will override the configuration in mcdx.h.
21
22 This driver:
23
24 o handles XA and (hopefully) multi session CDs as well as
25 ordinary CDs;
26 o supports up to 5 drives (of course, you'll need free
27 IRQs, i/o ports and slots);
28 o uses much less kernel memory than the standard mcd driver
29 (no extra driver internal buffers!).
30 o plays audio (like the `old' driver, I hope)
31
32 This version doesn't support yet:
33
34 o shared IRQs (but it seems to be possible - I've successfully
35 connected two drives to the same irq. So it's `only' a
36 problem of the driver.)
37
38 This driver never will:
39
40 o Read digital audio (i.e. copy directly), due to missing
41 hardware features.
42
43
44 heiko@lotte.sax.de
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