patch-2.1.8 linux/Documentation/ide.txt

• Lines: 115
• Date: Wed Nov 6 14:49:30 1996
• Orig file: v2.1.7/linux/Documentation/ide.txt
• Orig date: Wed Sep 25 11:11:47 1996

diff -u --recursive --new-file v2.1.7/linux/Documentation/ide.txt linux/Documentation/ide.txt
@@ -1,4 +1,4 @@
-ide.txt -- Information regarding the Enhanced IDE drive in Linux 2.0.xx
+ide.txt -- Information regarding the Enhanced IDE drive in Linux 2.1.xx
 ===============================================================================
 Supported by:
 	Mark Lord    <mlord@pobox.com>		-- disks, interfaces, probing
@@ -12,17 +12,18 @@
 
 See description later on below for handling BIG IDE drives with >1024 cyls.
 
-Major features of ide.c & ide-cd.c ("NEW!" marks changes since 1.2.13):
+Major features of the 2.1.xx IDE driver ("NEW!" marks changes since 2.0.xx):
 
-NEW!	- support for IDE ATAPI *tape* drives, courtesy of Gadi Oxman
+NEW!	- support for IDE ATAPI *floppy* drives
+	- support for IDE ATAPI *tape* drives, courtesy of Gadi Oxman
 		(re-run MAKEDEV.ide to create the tape device entries in /dev/)
-NEW!	- support for up to *four* IDE interfaces on one or more IRQs
-NEW!	- support for any mix of up to *eight* disk and/or cdrom drives
+	- support for up to *four* IDE interfaces on one or more IRQs
+	- support for any mix of up to *eight* IDE drives
 	- support for reading IDE ATAPI cdrom drives (NEC,MITSUMI,VERTOS,SONY)
 	- support for audio functions
 	- auto-detection of interfaces, drives, IRQs, and disk geometries
 		- "single" drives should be jumpered as "master", not "slave"
-NEW!		  (both are now probed for)
+		  (both are now probed for)
 	- support for BIOSs which report "more than 16 heads" on disk drives
 	- uses LBA (slightly faster) on disk drives which support it
 	- support for lots of fancy (E)IDE drive functions with hdparm utility
@@ -32,45 +33,43 @@
 	- improved handshaking and error detection/recovery
 	- can co-exist with hd.c controlling the first interface
 	- run-time selectable 32bit interface support (using hdparm-2.3)
-NEW!	- support for reliable operation of buggy RZ1000 interfaces
+	- support for reliable operation of buggy RZ1000 interfaces
 		- PCI support is automatic when rz1000 support is configured
-NEW!	- support for reliable operation of buggy CMD-640 interfaces
+	- support for reliable operation of buggy CMD-640 interfaces
 		- PCI support is automatic when cmd640 support is configured
 		- for VLB, use kernel command line option:   ide0=cmd640_vlb
 		- this support also enables the secondary i/f when needed
 		- interface PIO timing & prefetch parameter support
-NEW!	- experimental support for UMC 8672 interfaces
-NEW!	- support for secondary interface on the FGI/Holtek HT-6560B VLB i/f
+	- experimental support for UMC 8672 interfaces
+	- support for secondary interface on the FGI/Holtek HT-6560B VLB i/f
 		- use kernel command line option:   ide0=ht6560
-NEW!	- experimental support for various IDE chipsets
+	- experimental support for various IDE chipsets
 		- use appropriate kernel command line option from list below
-NEW!	- support for drives with a stuck WRERR_STAT bit
-NEW!	- support for removable devices, including door lock/unlock
-NEW!	- transparent support for DiskManager 6.0x and "Dynamic Disk Overlay"
+	- support for drives with a stuck WRERR_STAT bit
+	- support for removable devices, including door lock/unlock
+	- transparent support for DiskManager 6.0x and "Dynamic Disk Overlay"
 	- works with Linux fdisk, LILO, loadlin, bootln, etc..
-NEW!	- mostly transparent support for EZ-Drive disk translation software
-NEW!		- to use LILO with EZ, install LILO on the linux partition
+	- mostly transparent support for EZ-Drive disk translation software
+		- to use LILO with EZ, install LILO on the linux partition
 		  rather than on the master boot record, and then mark the
 		  linux partition as "bootable" or "active" using fdisk.
 		  (courtesy of Juha Laiho <jlaiho@ichaos.nullnet.fi>).
-NEW!	- auto-detect of disk translations by examining partition table
-NEW!	- ide-cd.c now compiles separate from ide.c
-NEW!	- Bus-Master DMA support for Intel PCI Triton chipset IDE interfaces
+	- auto-detect of disk translations by examining partition table
+	- ide-cd.c now compiles separate from ide.c
+	- Bus-Master DMA support for Intel PCI Triton chipset IDE interfaces
 		- for details, see comments at top of triton.c
-NEW!    - ide-cd.c now supports door locking and auto-loading.
+	- ide-cd.c now supports door locking and auto-loading.
 		- Also preliminary support for multisession
 		  and direct reads of audio data.
-NEW!	- experimental support for Promise DC4030VL caching interface card
-NEW!		- email thanks/problems to: peterd@pnd-pc.demon.co.uk
-NEW!	- the hdparm-3.1 package can be used to set PIO modes for some chipsets.
-
-For work in progress, see the comments in ide.c, ide-cd.c, and triton.c.
-
-Note that there is now a group actively working on support for the Promise
-caching IDE cards, such as the DC4030VL, and early results are encouraging.
-Look for this support to be added to the kernel soon.
+	- experimental support for Promise DC4030VL caching interface card
+		- email thanks/problems to: peterd@pnd-pc.demon.co.uk
+	- the hdparm-3.1 package can be used to set PIO modes for some chipsets.
+NEW!	- support for the OPTi 82C621 chipset, courtesy of Jaromir Koutek.
+NEW!	- support for loadable modules
 
 
+For work in progress, see the comments in ide.c, ide-cd.c, triton.c, ...
+
 ***  IMPORTANT NOTICES:  BUGGY IDE CHIPSETS CAN CORRUPT DATA!!
 ***  =================
 ***  PCI versions of the CMD640 and RZ1000 interfaces are now detected
@@ -258,7 +257,7 @@
  "hdx=slow"		: insert a huge pause after each access to the data
 				port. Should be used only as a last resort.
 
- "idebus=xx"		: inform IDE driver of VESA/PCI bus speed in Mhz,
+ "idebus=xx"		: inform IDE driver of VESA/PCI bus speed in MHz,
 				where "xx" is between 20 and 66 inclusive,
 				used when tuning chipset PIO modes.
 				For PCI bus, 25 is correct for a P75 system,
@@ -311,7 +310,7 @@
 beyond the basics.  When purchasing a localbus IDE interface, avoid cards with
 an onboard BIOS and those which require special drivers.  Instead, look for a
 card which uses hardware switches/jumpers to select the interface timing speed,
-to allow much faster data transfers than the original 8Mhz ISA bus allows.
+to allow much faster data transfers than the original 8MHz ISA bus allows.
 
 ATA = AT (the old IBM 286 computer) Attachment Interface, a draft American
 National Standard for connecting hard drives to PCs.  This is the official