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1da177e4 LT |
1 | -- Documentation/cdrom/sjcd |
2 | 80% of the work takes 20% of the time, | |
3 | 20% of the work takes 80% of the time... | |
4 | (Murphy's law) | |
5 | ||
6 | Once started, training can not be stopped... | |
7 | (Star Wars) | |
8 | ||
9 | This is the README for the sjcd cdrom driver, version 1.6. | |
10 | ||
11 | This file is meant as a tips & tricks edge for the usage of the SANYO CDR-H94A | |
12 | cdrom drive. It will grow as the questions arise. ;-) | |
13 | For info on configuring the ISP16 sound card look at Documentation/cdrom/isp16. | |
14 | ||
15 | The driver should work with any of the Panasonic, Sony or Mitsumi style | |
16 | CDROM interfaces. | |
17 | The cdrom interface on Media Magic's soft configurable sound card ISP16, | |
18 | which used to be included in the driver, is now supported in a separate module. | |
19 | This initialisation module will probably also work with other interfaces | |
20 | based on an OPTi 82C928 or 82C929 chip (like MAD16 and Mozart): see the | |
21 | documentation Documentation/cdrom/isp16. | |
22 | ||
23 | The device major for sjcd is 18, and minor is 0. Create a block special | |
24 | file in your /dev directory (e.g., /dev/sjcd) with these numbers. | |
25 | (For those who don't know, being root and doing the following should do | |
26 | the trick: | |
27 | mknod -m 644 /dev/sjcd b 18 0 | |
28 | and mount the cdrom by /dev/sjcd). | |
29 | ||
30 | The default configuration parameters are: | |
31 | base address 0x340 | |
32 | no irq | |
33 | no dma | |
34 | (Actually the CDR-H94A doesn't know how to use irq and dma.) | |
35 | As of version 1.2, setting base address at boot time is supported | |
36 | through the use of command line options: type at the "boot:" prompt: | |
37 | linux sjcd=<base_address> | |
38 | (where you would use the kernel labeled "linux" in lilo's configuration | |
39 | file /etc/lilo.conf). You could also use 'append="sjcd=<configuration_info>"' | |
40 | in the appropriate section of /etc/lilo.conf | |
41 | If you're building a kernel yourself you can set your default base | |
42 | i/o address with SJCD_BASE_ADDR in /usr/src/linux/drivers/cdrom/sjcd.h. | |
43 | ||
44 | The sjcd driver supports being loaded as a module. The following | |
45 | command will set the base i/o address on the fly (assuming you | |
46 | have installed the module in an appropriate place). | |
47 | insmod sjcd.o sjcd_base=<base_address> | |
48 | ||
49 | ||
50 | Have fun! | |
51 | ||
52 | If something is wrong, please email to vadim@rbrf.ru | |
53 | or vadim@ipsun.ras.ru | |
54 | or model@cecmow.enet.dec.com | |
55 | or H.T.M.v.d.Maarel@marin.nl | |
56 | ||
57 | It happens sometimes that Vadim is not reachable by mail. For these | |
58 | instances, Eric van der Maarel will help too. | |
59 | ||
60 | Vadim V. Model, Eric van der Maarel, Eberhard Moenkeberg |