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>
45 lines
1.6 KiB
Plaintext
45 lines
1.6 KiB
Plaintext
config ISDN_DRV_AVMB1_VERBOSE_REASON
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bool "Verbose reason code reporting"
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default y
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help
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If you say Y here, the CAPI drivers will give verbose reasons for
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disconnecting. This will increase the size of the kernel by 7 KB. If
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unsure, say Y.
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config CAPI_TRACE
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bool "CAPI trace support"
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default y
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help
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If you say Y here, the kernelcapi driver can make verbose traces
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of CAPI messages. This feature can be enabled/disabled via IOCTL for
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every controller (default disabled).
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This will increase the size of the kernelcapi module by 20 KB.
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If unsure, say Y.
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config ISDN_CAPI_MIDDLEWARE
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bool "CAPI2.0 Middleware support"
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depends on TTY
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help
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This option will enhance the capabilities of the /dev/capi20
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interface. It will provide a means of moving a data connection,
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established via the usual /dev/capi20 interface to a special tty
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device. If you want to use pppd with pppdcapiplugin to dial up to
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your ISP, say Y here.
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config ISDN_CAPI_CAPI20
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tristate "CAPI2.0 /dev/capi support"
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help
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This option will provide the CAPI 2.0 interface to userspace
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applications via /dev/capi20. Applications should use the
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standardized libcapi20 to access this functionality. You should say
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Y/M here.
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config ISDN_CAPI_CAPIDRV
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tristate "CAPI2.0 capidrv interface support"
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depends on ISDN_I4L
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help
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This option provides the glue code to hook up CAPI driven cards to
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the legacy isdn4linux link layer. If you have a card which is
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supported by a CAPI driver, but still want to use old features like
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ippp interfaces or ttyI emulation, say Y/M here.
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