forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
117 lines
3.8 KiB
117 lines
3.8 KiB
.. SPDX-License-Identifier: GPL-2.0 |
|
|
|
====================================== |
|
README file for the dc395x SCSI driver |
|
====================================== |
|
|
|
Status |
|
------ |
|
The driver has been tested with CD-R and CD-R/W drives. These should |
|
be safe to use. Testing with hard disks has not been done to any |
|
great degree and caution should be exercised if you want to attempt |
|
to use this driver with hard disks. |
|
|
|
This is a 2.5 only driver. For a 2.4 driver please see the original |
|
driver (which this driver started from) at |
|
http://www.garloff.de/kurt/linux/dc395/ |
|
|
|
Problems, questions and patches should be submitted to the mailing |
|
list. Details on the list, including archives, are available at |
|
http://lists.twibble.org/mailman/listinfo/dc395x/ |
|
|
|
Parameters |
|
---------- |
|
The driver uses the settings from the EEPROM set in the SCSI BIOS |
|
setup. If there is no EEPROM, the driver uses default values. |
|
Both can be overridden by command line parameters (module or kernel |
|
parameters). |
|
|
|
The following parameters are available: |
|
|
|
safe |
|
Default: 0, Acceptable values: 0 or 1 |
|
|
|
If safe is set to 1 then the adapter will use conservative |
|
("safe") default settings. This sets: |
|
|
|
shortcut for dc395x=7,4,9,15,2,10 |
|
|
|
adapter_id |
|
Default: 7, Acceptable values: 0 to 15 |
|
|
|
Sets the host adapter SCSI ID. |
|
|
|
max_speed |
|
Default: 1, Acceptable value: 0 to 7 |
|
|
|
== ======== |
|
0 20 Mhz |
|
1 12.2 Mhz |
|
2 10 Mhz |
|
3 8 Mhz |
|
4 6.7 Mhz |
|
5 5.8 Hhz |
|
6 5 Mhz |
|
7 4 Mhz |
|
== ======== |
|
|
|
dev_mode |
|
Bitmap for device configuration |
|
|
|
DevMode bit definition: |
|
|
|
=== ======== ======== ========================================= |
|
Bit Val(hex) Val(dec) Meaning |
|
=== ======== ======== ========================================= |
|
0 0x01 1 Parity check |
|
1 0x02 2 Synchronous Negotiation |
|
2 0x04 4 Disconnection |
|
3 0x08 8 Send Start command on startup. (Not used) |
|
4 0x10 16 Tagged Command Queueing |
|
5 0x20 32 Wide Negotiation |
|
=== ======== ======== ========================================= |
|
|
|
adapter_mode |
|
Bitmap for adapter configuration |
|
|
|
AdaptMode bit definition |
|
|
|
===== ======== ======== ==================================================== |
|
Bit Val(hex) Val(dec) Meaning |
|
===== ======== ======== ==================================================== |
|
0 0x01 1 Support more than two drives. (Not used) |
|
1 0x02 2 Use DOS compatible mapping for HDs greater than 1GB. |
|
2 0x04 4 Reset SCSI Bus on startup. |
|
3 0x08 8 Active Negation: Improves SCSI Bus noise immunity. |
|
4 0x10 16 Immediate return on BIOS seek command. (Not used) |
|
(*)5 0x20 32 Check for LUNs >= 1. |
|
===== ======== ======== ==================================================== |
|
|
|
tags |
|
Default: 3, Acceptable values: 0-5 |
|
|
|
The number of tags is 1<<x, if x has been specified |
|
|
|
reset_delay |
|
Default: 1, Acceptable values: 0-180 |
|
|
|
The seconds to not accept commands after a SCSI Reset |
|
|
|
|
|
For the built in driver the parameters should be prefixed with |
|
dc395x. (eg "dc395x.safe=1") |
|
|
|
|
|
Copyright |
|
--------- |
|
The driver is free software. It is protected by the GNU General Public |
|
License (GPL). Please read it, before using this driver. It should be |
|
included in your kernel sources and with your distribution. It carries the |
|
filename COPYING. If you don't have it, please ask me to send you one by |
|
email. |
|
|
|
Note: The GNU GPL says also something about warranty and liability. |
|
Please be aware the following: While we do my best to provide a working and |
|
reliable driver, there is a chance, that it will kill your valuable data. |
|
We refuse to take any responsibility for that. The driver is provided as-is |
|
and YOU USE IT AT YOUR OWN RESPONSIBILITY.
|
|
|