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4f73bc4dd3
The option allows you to remove TTY and compile without errors. This saves space on systems that won't support TTY interfaces anyway. bloat-o-meter output is below. The bulk of this patch consists of Kconfig changes adding "depends on TTY" to various serial devices and similar drivers that require the TTY layer. Ideally, these dependencies would occur on a common intermediate symbol such as SERIO, but most drivers "select SERIO" rather than "depends on SERIO", and "select" does not respect dependencies. bloat-o-meter output comparing our previous minimal to new minimal by removing TTY. The list is filtered to not show removed entries with awk '$3 != "-"' as the list was very long. add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350) function old new delta chr_dev_init 166 170 +4 allow_signal 80 82 +2 static.__warned 143 142 -1 disallow_signal 63 62 -1 __set_special_pids 95 94 -1 unregister_console 126 121 -5 start_kernel 546 541 -5 register_console 593 588 -5 copy_from_user 45 40 -5 sys_setsid 128 120 -8 sys_vhangup 32 19 -13 do_exit 1543 1526 -17 bitmap_zero 60 40 -20 arch_local_irq_save 137 117 -20 release_task 674 652 -22 static.spin_unlock_irqrestore 308 260 -48 Signed-off-by: Joe Millenbach <jmillenbach@gmail.com> Reviewed-by: Jamey Sharp <jamey@minilop.net> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
120 lines
3.5 KiB
Text
120 lines
3.5 KiB
Text
if MMU
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config ARCH_MAY_HAVE_PC_FDC
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bool
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depends on BROKEN && (Q40 || SUN3X)
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default y
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menu "Platform devices"
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config HEARTBEAT
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bool "Use power LED as a heartbeat" if AMIGA || APOLLO || ATARI || Q40
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default y if !AMIGA && !APOLLO && !ATARI && !Q40 && HP300
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help
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Use the power-on LED on your machine as a load meter. The exact
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behavior is platform-dependent, but normally the flash frequency is
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a hyperbolic function of the 5-minute load average.
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# We have a dedicated heartbeat LED. :-)
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config PROC_HARDWARE
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bool "/proc/hardware support"
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help
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Say Y here to support the /proc/hardware file, which gives you
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access to information about the machine you're running on,
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including the model, CPU, MMU, clock speed, BogoMIPS rating,
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and memory size.
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config NATFEAT
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bool "ARAnyM emulator support"
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depends on ATARI
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help
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This option enables support for ARAnyM native features, such as
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access to a disk image as /dev/hda.
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config NFBLOCK
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tristate "NatFeat block device support"
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depends on BLOCK && NATFEAT
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help
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Say Y to include support for the ARAnyM NatFeat block device
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which allows direct access to the hard drives without using
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the hardware emulation.
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config NFCON
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tristate "NatFeat console driver"
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depends on TTY && NATFEAT
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help
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Say Y to include support for the ARAnyM NatFeat console driver
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which allows the console output to be redirected to the stderr
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output of ARAnyM.
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config NFETH
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tristate "NatFeat Ethernet support"
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depends on ETHERNET && NATFEAT
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help
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Say Y to include support for the ARAnyM NatFeat network device
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which will emulate a regular ethernet device while presenting an
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ethertap device to the host system.
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endmenu
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menu "Character devices"
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config ATARI_DSP56K
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tristate "Atari DSP56k support"
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depends on ATARI
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help
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If you want to be able to use the DSP56001 in Falcons, say Y. This
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driver is still experimental, and if you don't know what it is, or
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if you don't have this processor, just say N.
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To compile this driver as a module, choose M here.
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config AMIGA_BUILTIN_SERIAL
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tristate "Amiga builtin serial support"
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depends on AMIGA
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help
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If you want to use your Amiga's built-in serial port in Linux,
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answer Y.
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To compile this driver as a module, choose M here.
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config HPDCA
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tristate "HP DCA serial support"
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depends on DIO && SERIAL_8250
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help
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If you want to use the internal "DCA" serial ports on an HP300
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machine, say Y here.
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config HPAPCI
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tristate "HP APCI serial support"
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depends on HP300 && SERIAL_8250
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help
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If you want to use the internal "APCI" serial ports on an HP400
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machine, say Y here.
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config SERIAL_CONSOLE
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bool "Support for serial port console"
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depends on AMIGA_BUILTIN_SERIAL=y
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---help---
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If you say Y here, it will be possible to use a serial port as the
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system console (the system console is the device which receives all
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kernel messages and warnings and which allows logins in single user
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mode). This could be useful if some terminal or printer is connected
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to that serial port.
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Even if you say Y here, the currently visible virtual console
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(/dev/tty0) will still be used as the system console by default, but
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you can alter that using a kernel command line option such as
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"console=ttyS1". (Try "man bootparam" or see the documentation of
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your boot loader about how to pass options to the kernel at boot
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time.)
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If you don't have a graphical console and you say Y here, the
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kernel will automatically use the first serial line, /dev/ttyS0, as
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system console.
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If unsure, say N.
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endmenu
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endif
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