2012-06-13 04:40:29 +00:00
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# Kernel configuration for Atmel AT91SAM9G20EK Rev B. development card
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2015-05-19 21:16:51 +00:00
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# Many after-market boards follow its conventions.
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2010-10-06 22:32:31 +00:00
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#
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# For more information on this file, please read the handbook section on
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# Kernel Configuration Files:
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#
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# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
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#
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# The handbook is also available locally in /usr/share/doc/handbook
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# if you've installed the doc distribution, otherwise always see the
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# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
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# latest information.
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#
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# An exhaustive list of options and more detailed explanations of the
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2012-06-13 04:40:29 +00:00
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# device lines is also present in the ../../conf/NOTES and NOTES files.
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# If you are in doubt as to the purpose or necessity of a line, check first
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2010-10-06 22:32:31 +00:00
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# in NOTES.
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#
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# $FreeBSD$
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ident SAM9G20EK
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2015-05-07 12:38:23 +00:00
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include "std.arm"
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include "../at91/std.sam9g20ek"
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2010-10-06 22:32:31 +00:00
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2015-11-07 20:02:07 +00:00
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#options FDT
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#options FDT_DTB_STATIC
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#makeoptions FDT_DTS_FILE=at91sam9g20ek.dts
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options EARLY_PRINTF
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options SOCDEV_PA=0xfc000000
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options SOCDEV_VA=0xdc000000
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2010-10-06 22:32:31 +00:00
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#To statically compile in device wiring instead of /boot/device.hints
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hints "SAM9G20EK.hints"
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makeoptions MODULES_OVERRIDE=""
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2014-03-16 15:22:46 +00:00
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options SCHED_4BSD # 4BSD scheduler
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options INET # InterNETworking
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#options INET6 # IPv6 communications protocols
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In the TCP stack, the hhook(9) framework provides hooks for kernel modules
to add actions that run when a TCP frame is sent or received on a TCP
session in the ESTABLISHED state. In the base tree, this functionality is
only used for the h_ertt module, which is used by the cc_cdg, cc_chd, cc_hd,
and cc_vegas congestion control modules.
Presently, we incur overhead to check for hooks each time a TCP frame is
sent or received on an ESTABLISHED TCP session.
This change adds a new compile-time option (TCP_HHOOK) to determine whether
to include the hhook(9) framework for TCP. To retain backwards
compatibility, I added the TCP_HHOOK option to every configuration file that
already defined "options INET". (Therefore, this patch introduces no
functional change. In order to see a functional difference, you need to
compile a custom kernel without the TCP_HHOOK option.) This change will
allow users to easily exclude this functionality from their kernel, should
they wish to do so.
Note that any users who use a custom kernel configuration and use one of the
congestion control modules listed above will need to add the TCP_HHOOK
option to their kernel configuration.
Reviewed by: rrs, lstewart, hiren (previous version), sjg (makefiles only)
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D8185
2016-10-12 02:16:42 +00:00
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options TCP_HHOOK # hhook(9) framework for TCP
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2014-03-18 14:41:18 +00:00
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options TMPFS # Efficient memory filesystem
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2014-03-16 15:22:46 +00:00
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options FFS # Berkeley Fast Filesystem
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#options SOFTUPDATES # Enable FFS soft updates support
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#options UFS_ACL # Support for access control lists
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#options UFS_DIRHASH # Improve performance on big directories
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#options MD_ROOT # MD is a potential root device
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2014-01-24 16:56:27 +00:00
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#options MD_ROOT_SIZE=4096 # 4MB ram disk
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2014-03-16 15:22:46 +00:00
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options NANDFS # NAND file system
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2015-01-06 16:15:57 +00:00
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options NFSCL # Network Filesystem Client
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2015-05-19 21:16:51 +00:00
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options NFSD # Network Filesystem Server
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options NFSLOCKD # Network Lock Manager
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2014-03-16 15:22:46 +00:00
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#options NFS_ROOT # NFS usable as /, requires NFSCL
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#options MSDOSFS # MSDOS Filesystem
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#options CD9660 # ISO 9660 Filesystem
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#options PROCFS # Process filesystem (requires PSEUDOFS)
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#options PSEUDOFS # Pseudo-filesystem framework
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2015-05-05 18:29:51 +00:00
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options GEOM_PART_BSD # BSD partition scheme
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options GEOM_PART_MBR # MBR partition scheme
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2014-03-16 15:22:46 +00:00
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#options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
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#options KTRACE # ktrace(1) support
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options SYSVSHM # SYSV-style shared memory
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options SYSVMSG # SYSV-style message queues
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options SYSVSEM # SYSV-style semaphores
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options _KPOSIX_PRIORITY_SCHEDULING # Posix P1003_1B real-time extensions
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2010-10-06 22:32:31 +00:00
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2015-05-05 18:29:51 +00:00
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# NFS root from boopt/dhcp
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#options BOOTP
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#options BOOTP_NFSROOT
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#options BOOTP_COMPAT
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#options BOOTP_NFSV3
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#options BOOTP_WIRED_TO=ate0
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2010-10-06 22:32:31 +00:00
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2015-12-21 18:27:51 +00:00
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# s3 because s1 is reserved for the DOS parittions sometimes needed to
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# boot off SD cards on the G20 and newer chips. s2 is reserved for
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# nanobsd's config partition. s3 and s4 are for the ping-pong upgrade
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# path.
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options ROOTDEVNAME=\"ufs:/dev/mmcsd0s3a\"
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2015-05-05 18:29:51 +00:00
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# kernel/memory size reduction
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options MUTEX_NOINLINE
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options NO_FFS_SNAPSHOT
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options NO_SWAPPING
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options NO_SYSCTL_DESCR
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options RWLOCK_NOINLINE
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# The `bpf' device enables the Berkeley Packet Filter.
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# Be aware of the administrative consequences of enabling this!
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# Note that 'bpf' is required for DHCP.
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device bpf # Berkeley packet filter
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2010-10-06 22:32:31 +00:00
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# Ethernet
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2015-05-05 18:29:51 +00:00
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device mii # Minimal MII support
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2015-11-07 20:02:07 +00:00
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#device ate # Atmel AT91 Ethernet driver
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#options AT91_ATE_USE_RMII
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device macb # Atmel AT91 Ethernet driver
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options AT91_MACB_USE_RMII
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2010-10-06 22:32:31 +00:00
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2015-05-05 18:29:51 +00:00
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# I2C
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device at91_twi # Atmel AT91 Two-wire Interface
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device iic # I2C generic I/O device driver
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device iicbus # I2C bus system
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device icee
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2010-10-06 22:32:31 +00:00
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2015-05-05 18:29:51 +00:00
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# MMC/SD
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device at91_mci # Atmel AT91 Multimedia Card Interface
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options AT91_MCI_HAS_4WIRE
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options AT91_MCI_SLOT_B
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device mmc # MMC/SD bus
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device mmcsd # MMC/SD memory card
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2014-01-24 16:56:27 +00:00
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2015-05-05 18:29:51 +00:00
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# DataFlash
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2012-06-13 04:40:29 +00:00
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# NOTE: SPI DataFlash and mci/mmc/mmcsd have hardware
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2010-10-06 22:32:31 +00:00
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# confilict on this card. Use one or the other.
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# see board_sam9g20ek.c
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2015-05-05 18:29:51 +00:00
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#device at91_spi # Atmel AT91 Serial Peripheral Interface
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#device spibus # SPI bus
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2010-10-06 22:32:31 +00:00
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#device at45d # at45db642 and maybe others
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2015-05-05 18:29:51 +00:00
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# Pseudo devices.
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device loop # Network loopback
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device random # Entropy device
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device ether # Ethernet support
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device md # Memory "disks"
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2010-10-06 22:32:31 +00:00
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# SCSI peripherals
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2014-09-01 03:49:21 +00:00
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device scbus # SCSI bus (required for ATA/SCSI)
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2014-03-16 15:22:46 +00:00
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device da # Direct Access (disks)
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device cd # CD
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2014-09-01 03:49:21 +00:00
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device pass # Passthrough device (direct ATA/SCSI access)
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2010-10-06 22:32:31 +00:00
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2015-05-05 18:29:51 +00:00
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# Serial (COM) ports
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device uart # Multi-uart driver
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2010-10-06 22:32:31 +00:00
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# USB support
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2015-05-05 18:29:51 +00:00
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device ohci # OHCI USB interface
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2014-03-16 15:22:46 +00:00
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device usb # USB Bus (required)
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device umass # Disks/Mass storage - Requires scbus and da
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device uhid # "Human Interface Devices"
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#device ulpt # Printer
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#device udbp # USB Double Bulk Pipe devices
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2010-10-06 22:32:31 +00:00
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# USB Ethernet, requires miibus
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2014-01-24 16:56:27 +00:00
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#device miibus
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2014-03-16 15:22:46 +00:00
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#device aue # ADMtek USB Ethernet
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#device axe # ASIX Electronics USB Ethernet
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#device cdce # Generic USB over Ethernet
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#device cue # CATC USB Ethernet
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#device kue # Kawasaki LSI USB Ethernet
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#device rue # RealTek RTL8150 USB Ethernet
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#device udav # Davicom DM9601E USB
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2010-10-06 22:32:31 +00:00
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# USB Wireless
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2014-03-16 15:22:46 +00:00
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#device rum # Ralink Technology RT2501USB wireless NICs
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#device uath # Atheros AR5523 wireless NICs
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#device ural # Ralink Technology RT2500USB wireless NICs
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#device zyd # ZyDAS zd1211/zd1211b wireless NICs
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2010-10-06 22:32:31 +00:00
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# Wireless NIC cards
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2014-03-16 15:22:46 +00:00
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#device wlan # 802.11 support
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#device wlan_wep # 802.11 WEP support
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#device wlan_ccmp # 802.11 CCMP support
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#device wlan_tkip # 802.11 TKIP support
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#device wlan_amrr # AMRR transmit rate control algorithm
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2015-05-05 18:29:51 +00:00
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# watchdog
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device at91_wdt # Atmel AT91 Watchdog Timer
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# NAND Flash - Reference design has Samsung 256MB but others possible
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device nand # NAND interface on CS3
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