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Creation of Cybook 2416 (actually Gen4) repository

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mlt
2009-12-18 17:10:00 +00:00
committed by godzil
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#
# Block device driver configuration
#
if BLOCK
menu "Block devices"
config BLK_DEV_FD
tristate "Normal floppy disk support"
depends on ARCH_MAY_HAVE_PC_FDC
---help---
If you want to use the floppy disk drive(s) of your PC under Linux,
say Y. Information about this driver, especially important for IBM
Thinkpad users, is contained in <file:Documentation/floppy.txt>.
That file also contains the location of the Floppy driver FAQ as
well as location of the fdutils package used to configure additional
parameters of the driver at run time.
To compile this driver as a module, choose M here: the
module will be called floppy.
config AMIGA_FLOPPY
tristate "Amiga floppy support"
depends on AMIGA
config ATARI_FLOPPY
tristate "Atari floppy support"
depends on ATARI
config MAC_FLOPPY
tristate "Support for PowerMac floppy"
depends on PPC_PMAC && !PPC_PMAC64
help
If you have a SWIM-3 (Super Woz Integrated Machine 3; from Apple)
floppy controller, say Y here. Most commonly found in PowerMacs.
config BLK_DEV_PS2
tristate "PS/2 ESDI hard disk support"
depends on MCA && MCA_LEGACY && BROKEN
help
Say Y here if you have a PS/2 machine with a MCA bus and an ESDI
hard disk.
To compile this driver as a module, choose M here: the
module will be called ps2esdi.
config AMIGA_Z2RAM
tristate "Amiga Zorro II ramdisk support"
depends on ZORRO
help
This enables support for using Chip RAM and Zorro II RAM as a
ramdisk or as a swap partition. Say Y if you want to include this
driver in the kernel.
To compile this driver as a module, choose M here: the
module will be called z2ram.
config ATARI_ACSI
tristate "Atari ACSI support"
depends on ATARI && BROKEN
---help---
This enables support for the Atari ACSI interface. The driver
supports hard disks and CD-ROMs, which have 512-byte sectors, or can
be switched to that mode. Due to the ACSI command format, only disks
up to 1 GB are supported. Special support for certain ACSI to SCSI
adapters, which could relax that, isn't included yet. The ACSI
driver is also the basis for certain other drivers for devices
attached to the ACSI bus: Atari SLM laser printer, BioNet-100
Ethernet, and PAMsNet Ethernet. If you want to use one of these
devices, you need ACSI support, too.
To compile this driver as a module, choose M here: the
module will be called acsi.
comment "Some devices (e.g. CD jukebox) support multiple LUNs"
depends on ATARI && ATARI_ACSI
config ACSI_MULTI_LUN
bool "Probe all LUNs on each ACSI device"
depends on ATARI_ACSI
help
If you have a ACSI device that supports more than one LUN (Logical
Unit Number), e.g. a CD jukebox, you should say Y here so that all
will be found by the ACSI driver. An ACSI device with multiple LUNs
acts logically like multiple ACSI devices. The vast majority of ACSI
devices have only one LUN, and so most people can say N here and
should in fact do so, because it is safer.
config ATARI_SLM
tristate "Atari SLM laser printer support"
depends on ATARI && ATARI_ACSI!=n
help
If you have an Atari SLM laser printer, say Y to include support for
it in the kernel. Otherwise, say N. This driver is also available as
a module ( = code which can be inserted in and removed from the
running kernel whenever you want). The module will be called
acsi_slm. Be warned: the driver needs much ST-RAM and can cause
problems due to that fact!
config BLK_DEV_XD
tristate "XT hard disk support"
depends on ISA && ISA_DMA_API
help
Very old 8 bit hard disk controllers used in the IBM XT computer
will be supported if you say Y here.
To compile this driver as a module, choose M here: the
module will be called xd.
It's pretty unlikely that you have one of these: say N.
config PARIDE
tristate "Parallel port IDE device support"
depends on PARPORT_PC
---help---
There are many external CD-ROM and disk devices that connect through
your computer's parallel port. Most of them are actually IDE devices
using a parallel port IDE adapter. This option enables the PARIDE
subsystem which contains drivers for many of these external drives.
Read <file:Documentation/paride.txt> for more information.
If you have said Y to the "Parallel-port support" configuration
option, you may share a single port between your printer and other
parallel port devices. Answer Y to build PARIDE support into your
kernel, or M if you would like to build it as a loadable module. If
your parallel port support is in a loadable module, you must build
PARIDE as a module. If you built PARIDE support into your kernel,
you may still build the individual protocol modules and high-level
drivers as loadable modules. If you build this support as a module,
it will be called paride.
To use the PARIDE support, you must say Y or M here and also to at
least one high-level driver (e.g. "Parallel port IDE disks",
"Parallel port ATAPI CD-ROMs", "Parallel port ATAPI disks" etc.) and
to at least one protocol driver (e.g. "ATEN EH-100 protocol",
"MicroSolutions backpack protocol", "DataStor Commuter protocol"
etc.).
source "drivers/block/paride/Kconfig"
config BLK_CPQ_DA
tristate "Compaq SMART2 support"
depends on PCI
help
This is the driver for Compaq Smart Array controllers. Everyone
using these boards should say Y here. See the file
<file:Documentation/cpqarray.txt> for the current list of boards
supported by this driver, and for further information on the use of
this driver.
config BLK_CPQ_CISS_DA
tristate "Compaq Smart Array 5xxx support"
depends on PCI
help
This is the driver for Compaq Smart Array 5xxx controllers.
Everyone using these boards should say Y here.
See <file:Documentation/cciss.txt> for the current list of
boards supported by this driver, and for further information
on the use of this driver.
config CISS_SCSI_TAPE
bool "SCSI tape drive support for Smart Array 5xxx"
depends on BLK_CPQ_CISS_DA && PROC_FS
depends on SCSI=y || SCSI=BLK_CPQ_CISS_DA
help
When enabled (Y), this option allows SCSI tape drives and SCSI medium
changers (tape robots) to be accessed via a Compaq 5xxx array
controller. (See <file:Documentation/cciss.txt> for more details.)
"SCSI support" and "SCSI tape support" must also be enabled for this
option to work.
When this option is disabled (N), the SCSI portion of the driver
is not compiled.
config BLK_DEV_DAC960
tristate "Mylex DAC960/DAC1100 PCI RAID Controller support"
depends on PCI
help
This driver adds support for the Mylex DAC960, AcceleRAID, and
eXtremeRAID PCI RAID controllers. See the file
<file:Documentation/README.DAC960> for further information about
this driver.
To compile this driver as a module, choose M here: the
module will be called DAC960.
config BLK_DEV_UMEM
tristate "Micro Memory MM5415 Battery Backed RAM support (EXPERIMENTAL)"
depends on PCI && EXPERIMENTAL
---help---
Saying Y here will include support for the MM5415 family of
battery backed (Non-volatile) RAM cards.
<http://www.umem.com/>
The cards appear as block devices that can be partitioned into
as many as 15 partitions.
To compile this driver as a module, choose M here: the
module will be called umem.
The umem driver has not yet been allocated a MAJOR number, so
one is chosen dynamically.
config BLK_DEV_UBD
bool "Virtual block device"
depends on UML
---help---
The User-Mode Linux port includes a driver called UBD which will let
you access arbitrary files on the host computer as block devices.
Unless you know that you do not need such virtual block devices say
Y here.
config BLK_DEV_UBD_SYNC
bool "Always do synchronous disk IO for UBD"
depends on BLK_DEV_UBD
---help---
Writes to the virtual block device are not immediately written to the
host's disk; this may cause problems if, for example, the User-Mode
Linux 'Virtual Machine' uses a journalling filesystem and the host
computer crashes.
Synchronous operation (i.e. always writing data to the host's disk
immediately) is configurable on a per-UBD basis by using a special
kernel command line option. Alternatively, you can say Y here to
turn on synchronous operation by default for all block devices.
If you're running a journalling file system (like reiserfs, for
example) in your virtual machine, you will want to say Y here. If
you care for the safety of the data in your virtual machine, Y is a
wise choice too. In all other cases (for example, if you're just
playing around with User-Mode Linux) you can choose N.
config BLK_DEV_COW_COMMON
bool
default BLK_DEV_UBD
config MMAPPER
tristate "Example IO memory driver (BROKEN)"
depends on UML && BROKEN
---help---
The User-Mode Linux port can provide support for IO Memory
emulation with this option. This allows a host file to be
specified as an I/O region on the kernel command line. That file
will be mapped into UML's kernel address space where a driver can
locate it and do whatever it wants with the memory, including
providing an interface to it for UML processes to use.
For more information, see
<http://user-mode-linux.sourceforge.net/iomem.html>.
If you'd like to be able to provide a simulated IO port space for
User-Mode Linux processes, say Y. If unsure, say N.
config BLK_DEV_LOOP
tristate "Loopback device support"
---help---
Saying Y here will allow you to use a regular file as a block
device; you can then create a file system on that block device and
mount it just as you would mount other block devices such as hard
drive partitions, CD-ROM drives or floppy drives. The loop devices
are block special device files with major number 7 and typically
called /dev/loop0, /dev/loop1 etc.
This is useful if you want to check an ISO 9660 file system before
burning the CD, or if you want to use floppy images without first
writing them to floppy. Furthermore, some Linux distributions avoid
the need for a dedicated Linux partition by keeping their complete
root file system inside a DOS FAT file using this loop device
driver.
To use the loop device, you need the losetup utility, found in the
util-linux package, see
<ftp://ftp.kernel.org/pub/linux/utils/util-linux/>.
The loop device driver can also be used to "hide" a file system in
a disk partition, floppy, or regular file, either using encryption
(scrambling the data) or steganography (hiding the data in the low
bits of, say, a sound file). This is also safe if the file resides
on a remote file server.
There are several ways of encrypting disks. Some of these require
kernel patches. The vanilla kernel offers the cryptoloop option
and a Device Mapper target (which is superior, as it supports all
file systems). If you want to use the cryptoloop, say Y to both
LOOP and CRYPTOLOOP, and make sure you have a recent (version 2.12
or later) version of util-linux. Additionally, be aware that
the cryptoloop is not safe for storing journaled filesystems.
Note that this loop device has nothing to do with the loopback
device used for network connections from the machine to itself.
To compile this driver as a module, choose M here: the
module will be called loop.
Most users will answer N here.
config BLK_DEV_CRYPTOLOOP
tristate "Cryptoloop Support"
select CRYPTO
select CRYPTO_CBC
depends on BLK_DEV_LOOP
---help---
Say Y here if you want to be able to use the ciphers that are
provided by the CryptoAPI as loop transformation. This might be
used as hard disk encryption.
WARNING: This device is not safe for journaled file systems like
ext3 or Reiserfs. Please use the Device Mapper crypto module
instead, which can be configured to be on-disk compatible with the
cryptoloop device.
config BLK_DEV_NBD
tristate "Network block device support"
depends on NET
---help---
Saying Y here will allow your computer to be a client for network
block devices, i.e. it will be able to use block devices exported by
servers (mount file systems on them etc.). Communication between
client and server works over TCP/IP networking, but to the client
program this is hidden: it looks like a regular local file access to
a block device special file such as /dev/nd0.
Network block devices also allows you to run a block-device in
userland (making server and client physically the same computer,
communicating using the loopback network device).
Read <file:Documentation/nbd.txt> for more information, especially
about where to find the server code, which runs in user space and
does not need special kernel support.
Note that this has nothing to do with the network file systems NFS
or Coda; you can say N here even if you intend to use NFS or Coda.
To compile this driver as a module, choose M here: the
module will be called nbd.
If unsure, say N.
config BLK_DEV_SX8
tristate "Promise SATA SX8 support"
depends on PCI
---help---
Saying Y or M here will enable support for the
Promise SATA SX8 controllers.
Use devices /dev/sx8/$N and /dev/sx8/$Np$M.
config BLK_DEV_UB
tristate "Low Performance USB Block driver"
depends on USB
help
This driver supports certain USB attached storage devices
such as flash keys.
If you enable this driver, it is recommended to avoid conflicts
with usb-storage by enabling USB_LIBUSUAL.
If unsure, say N.
config BLK_DEV_RAM
tristate "RAM disk support"
---help---
Saying Y here will allow you to use a portion of your RAM memory as
a block device, so that you can make file systems on it, read and
write to it and do all the other things that you can do with normal
block devices (such as hard drives). It is usually used to load and
store a copy of a minimal root file system off of a floppy into RAM
during the initial install of Linux.
Note that the kernel command line option "ramdisk=XX" is now
obsolete. For details, read <file:Documentation/ramdisk.txt>.
To compile this driver as a module, choose M here: the
module will be called rd.
Most normal users won't need the RAM disk functionality, and can
thus say N here.
config BLK_DEV_RAM_COUNT
int "Default number of RAM disks"
default "16"
depends on BLK_DEV_RAM
help
The default value is 16 RAM disks. Change this if you know what
are doing. If you boot from a filesystem that needs to be extracted
in memory, you will need at least one RAM disk (e.g. root on cramfs).
config BLK_DEV_RAM_SIZE
int "Default RAM disk size (kbytes)"
depends on BLK_DEV_RAM
default "4096"
help
The default value is 4096 kilobytes. Only change this if you know
what are you doing. If you are using IBM S/390, then set this to
8192.
config BLK_DEV_RAM_BLOCKSIZE
int "Default RAM disk block size (bytes)"
depends on BLK_DEV_RAM
default "1024"
help
The default value is 1024 bytes. PAGE_SIZE is a much more
efficient choice however. The default is kept to ensure initrd
setups function - apparently needed by the rd_load_image routine
that supposes the filesystem in the image uses a 1024 blocksize.
config CDROM_PKTCDVD
tristate "Packet writing on CD/DVD media"
depends on !UML
help
If you have a CDROM/DVD drive that supports packet writing, say
Y to include support. It should work with any MMC/Mt Fuji
compliant ATAPI or SCSI drive, which is just about any newer
DVD/CD writer.
Currently only writing to CD-RW, DVD-RW, DVD+RW and DVDRAM discs
is possible.
DVD-RW disks must be in restricted overwrite mode.
See the file <file:Documentation/cdrom/packet-writing.txt>
for further information on the use of this driver.
To compile this driver as a module, choose M here: the
module will be called pktcdvd.
config CDROM_PKTCDVD_BUFFERS
int "Free buffers for data gathering"
depends on CDROM_PKTCDVD
default "8"
help
This controls the maximum number of active concurrent packets. More
concurrent packets can increase write performance, but also require
more memory. Each concurrent packet will require approximately 64Kb
of non-swappable kernel memory, memory which will be allocated when
a disc is opened for writing.
config CDROM_PKTCDVD_WCACHE
bool "Enable write caching (EXPERIMENTAL)"
depends on CDROM_PKTCDVD && EXPERIMENTAL
help
If enabled, write caching will be set for the CD-R/W device. For now
this option is dangerous unless the CD-RW media is known good, as we
don't do deferred write error handling yet.
source "drivers/s390/block/Kconfig"
config ATA_OVER_ETH
tristate "ATA over Ethernet support"
depends on NET
help
This driver provides Support for ATA over Ethernet block
devices like the Coraid EtherDrive (R) Storage Blade.
endmenu
endif