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comedi: add HAS_IOPORT dependencies

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In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
not being declared. We thus need to add HAS_IOPORT as dependency for
those drivers using them.

Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Link: https://lore.kernel.org/r/20230522105049.1467313-7-schnelle@linux.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Niklas Schnelle 2023-05-22 12:50:11 +02:00 committed by Greg Kroah-Hartman
parent 1fbb0b2035
commit b5c75b68b7
1 changed files with 68 additions and 35 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

103
drivers/comedi/Kconfig
View file

@ -67,6 +67,7 @@ config COMEDI_TEST
config COMEDI_PARPORT config COMEDI_PARPORT
tristate "Parallel port support" tristate "Parallel port support"
depends on HAS_IOPORT
help help
Enable support for the standard parallel port. Enable support for the standard parallel port.
A cheap and easy way to get a few more digital I/O lines. Steal A cheap and easy way to get a few more digital I/O lines. Steal
@ -79,6 +80,7 @@ config COMEDI_PARPORT
config COMEDI_SSV_DNP config COMEDI_SSV_DNP
tristate "SSV Embedded Systems DIL/Net-PC support" tristate "SSV Embedded Systems DIL/Net-PC support"
depends on X86_32 || COMPILE_TEST depends on X86_32 || COMPILE_TEST
depends on HAS_IOPORT
help help
Enable support for SSV Embedded Systems DIL/Net-PC Enable support for SSV Embedded Systems DIL/Net-PC
@ -89,6 +91,7 @@ endif # COMEDI_MISC_DRIVERS
menuconfig COMEDI_ISA_DRIVERS menuconfig COMEDI_ISA_DRIVERS
bool "Comedi ISA and PC/104 drivers" bool "Comedi ISA and PC/104 drivers"
depends on ISA
help help
Enable comedi ISA and PC/104 drivers to be built Enable comedi ISA and PC/104 drivers to be built
@ -100,7 +103,8 @@ if COMEDI_ISA_DRIVERS
config COMEDI_PCL711 config COMEDI_PCL711
tristate "Advantech PCL-711/711b and ADlink ACL-8112 ISA card support" tristate "Advantech PCL-711/711b and ADlink ACL-8112 ISA card support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
help help
Enable support for Advantech PCL-711 and 711b, ADlink ACL-8112 Enable support for Advantech PCL-711 and 711b, ADlink ACL-8112
@ -161,8 +165,9 @@ config COMEDI_PCL730
config COMEDI_PCL812 config COMEDI_PCL812
tristate "Advantech PCL-812/813 and ADlink ACL-8112/8113/8113/8216" tristate "Advantech PCL-812/813 and ADlink ACL-8112/8113/8113/8216"
depends on HAS_IOPORT
select COMEDI_ISADMA if ISA_DMA_API select COMEDI_ISADMA if ISA_DMA_API
select COMEDI_8254 depends on COMEDI_8254
help help
Enable support for Advantech PCL-812/PG, PCL-813/B, ADLink Enable support for Advantech PCL-812/PG, PCL-813/B, ADLink
ACL-8112DG/HG/PG, ACL-8113, ACL-8216, ICP DAS A-821PGH/PGL/PGL-NDA, ACL-8112DG/HG/PG, ACL-8113, ACL-8216, ICP DAS A-821PGH/PGL/PGL-NDA,
@ -173,8 +178,9 @@ config COMEDI_PCL812
config COMEDI_PCL816 config COMEDI_PCL816
tristate "Advantech PCL-814 and PCL-816 ISA card support" tristate "Advantech PCL-814 and PCL-816 ISA card support"
depends on HAS_IOPORT
select COMEDI_ISADMA if ISA_DMA_API select COMEDI_ISADMA if ISA_DMA_API
select COMEDI_8254 depends on COMEDI_8254
help help
Enable support for Advantech PCL-814 and PCL-816 ISA cards Enable support for Advantech PCL-814 and PCL-816 ISA cards
@ -183,8 +189,9 @@ config COMEDI_PCL816
config COMEDI_PCL818 config COMEDI_PCL818
tristate "Advantech PCL-718 and PCL-818 ISA card support" tristate "Advantech PCL-718 and PCL-818 ISA card support"
depends on HAS_IOPORT
select COMEDI_ISADMA if ISA_DMA_API select COMEDI_ISADMA if ISA_DMA_API
select COMEDI_8254 depends on COMEDI_8254
help help
Enable support for Advantech PCL-818 ISA cards Enable support for Advantech PCL-818 ISA cards
PCL-818L, PCL-818H, PCL-818HD, PCL-818HG, PCL-818 and PCL-718 PCL-818L, PCL-818H, PCL-818HD, PCL-818HG, PCL-818 and PCL-718
@ -203,7 +210,7 @@ config COMEDI_PCM3724
config COMEDI_AMPLC_DIO200_ISA config COMEDI_AMPLC_DIO200_ISA
tristate "Amplicon PC212E/PC214E/PC215E/PC218E/PC272E" tristate "Amplicon PC212E/PC214E/PC215E/PC218E/PC272E"
select COMEDI_AMPLC_DIO200 depends on COMEDI_AMPLC_DIO200
help help
Enable support for Amplicon PC212E, PC214E, PC215E, PC218E and Enable support for Amplicon PC212E, PC214E, PC215E, PC218E and
PC272E ISA DIO boards PC272E ISA DIO boards
@ -255,7 +262,8 @@ config COMEDI_DAC02
config COMEDI_DAS16M1 config COMEDI_DAS16M1
tristate "MeasurementComputing CIO-DAS16/M1DAS-16 ISA card support" tristate "MeasurementComputing CIO-DAS16/M1DAS-16 ISA card support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
select COMEDI_8255 select COMEDI_8255
help help
Enable support for Measurement Computing CIO-DAS16/M1 ISA cards. Enable support for Measurement Computing CIO-DAS16/M1 ISA cards.
@ -265,7 +273,7 @@ config COMEDI_DAS16M1
config COMEDI_DAS08_ISA config COMEDI_DAS08_ISA
tristate "DAS-08 compatible ISA and PC/104 card support" tristate "DAS-08 compatible ISA and PC/104 card support"
select COMEDI_DAS08 depends on COMEDI_DAS08
help help
Enable support for Keithley Metrabyte/ComputerBoards DAS08 Enable support for Keithley Metrabyte/ComputerBoards DAS08
and compatible ISA and PC/104 cards: and compatible ISA and PC/104 cards:
@ -278,8 +286,9 @@ config COMEDI_DAS08_ISA
config COMEDI_DAS16 config COMEDI_DAS16
tristate "DAS-16 compatible ISA and PC/104 card support" tristate "DAS-16 compatible ISA and PC/104 card support"
depends on HAS_IOPORT
select COMEDI_ISADMA if ISA_DMA_API select COMEDI_ISADMA if ISA_DMA_API
select COMEDI_8254 depends on COMEDI_8254
select COMEDI_8255 select COMEDI_8255
help help
Enable support for Keithley Metrabyte/ComputerBoards DAS16 Enable support for Keithley Metrabyte/ComputerBoards DAS16
@ -296,7 +305,8 @@ config COMEDI_DAS16
config COMEDI_DAS800 config COMEDI_DAS800
tristate "DAS800 and compatible ISA card support" tristate "DAS800 and compatible ISA card support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
help help
Enable support for Keithley Metrabyte DAS800 and compatible ISA cards Enable support for Keithley Metrabyte DAS800 and compatible ISA cards
Keithley Metrabyte DAS-800, DAS-801, DAS-802 Keithley Metrabyte DAS-800, DAS-801, DAS-802
@ -308,8 +318,9 @@ config COMEDI_DAS800
config COMEDI_DAS1800 config COMEDI_DAS1800
tristate "DAS1800 and compatible ISA card support" tristate "DAS1800 and compatible ISA card support"
depends on HAS_IOPORT
select COMEDI_ISADMA if ISA_DMA_API select COMEDI_ISADMA if ISA_DMA_API
select COMEDI_8254 depends on COMEDI_8254
help help
Enable support for DAS1800 and compatible ISA cards Enable support for DAS1800 and compatible ISA cards
Keithley Metrabyte DAS-1701ST, DAS-1701ST-DA, DAS-1701/AO, Keithley Metrabyte DAS-1701ST, DAS-1701ST-DA, DAS-1701/AO,
@ -323,7 +334,8 @@ config COMEDI_DAS1800
config COMEDI_DAS6402 config COMEDI_DAS6402
tristate "DAS6402 and compatible ISA card support" tristate "DAS6402 and compatible ISA card support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
help help
Enable support for DAS6402 and compatible ISA cards Enable support for DAS6402 and compatible ISA cards
Computerboards, Keithley Metrabyte DAS6402 and compatibles Computerboards, Keithley Metrabyte DAS6402 and compatibles
@ -402,7 +414,8 @@ config COMEDI_FL512
config COMEDI_AIO_AIO12_8 config COMEDI_AIO_AIO12_8
tristate "I/O Products PC/104 AIO12-8 Analog I/O Board support" tristate "I/O Products PC/104 AIO12-8 Analog I/O Board support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
select COMEDI_8255 select COMEDI_8255
help help
Enable support for I/O Products PC/104 AIO12-8 Analog I/O Board Enable support for I/O Products PC/104 AIO12-8 Analog I/O Board
@ -456,8 +469,9 @@ config COMEDI_ADQ12B
config COMEDI_NI_AT_A2150 config COMEDI_NI_AT_A2150
tristate "NI AT-A2150 ISA card support" tristate "NI AT-A2150 ISA card support"
depends on HAS_IOPORT
select COMEDI_ISADMA if ISA_DMA_API select COMEDI_ISADMA if ISA_DMA_API
select COMEDI_8254 depends on COMEDI_8254
help help
Enable support for National Instruments AT-A2150 cards Enable support for National Instruments AT-A2150 cards
@ -466,7 +480,8 @@ config COMEDI_NI_AT_A2150
config COMEDI_NI_AT_AO config COMEDI_NI_AT_AO
tristate "NI AT-AO-6/10 EISA card support" tristate "NI AT-AO-6/10 EISA card support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
help help
Enable support for National Instruments AT-AO-6/10 cards Enable support for National Instruments AT-AO-6/10 cards
@ -497,7 +512,7 @@ config COMEDI_NI_ATMIO16D
config COMEDI_NI_LABPC_ISA config COMEDI_NI_LABPC_ISA
tristate "NI Lab-PC and compatibles ISA support" tristate "NI Lab-PC and compatibles ISA support"
select COMEDI_NI_LABPC depends on COMEDI_NI_LABPC
help help
Enable support for National Instruments Lab-PC and compatibles Enable support for National Instruments Lab-PC and compatibles
Lab-PC-1200, Lab-PC-1200AI, Lab-PC+. Lab-PC-1200, Lab-PC-1200AI, Lab-PC+.
@ -561,7 +576,7 @@ endif # COMEDI_ISA_DRIVERS
menuconfig COMEDI_PCI_DRIVERS menuconfig COMEDI_PCI_DRIVERS
tristate "Comedi PCI drivers" tristate "Comedi PCI drivers"
depends on PCI depends on PCI && HAS_IOPORT
help help
Enable support for comedi PCI drivers. Enable support for comedi PCI drivers.
@ -710,7 +725,8 @@ config COMEDI_ADL_PCI8164
config COMEDI_ADL_PCI9111 config COMEDI_ADL_PCI9111
tristate "ADLink PCI-9111HR support" tristate "ADLink PCI-9111HR support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
help help
Enable support for ADlink PCI9111 cards Enable support for ADlink PCI9111 cards
@ -720,7 +736,7 @@ config COMEDI_ADL_PCI9111
config COMEDI_ADL_PCI9118 config COMEDI_ADL_PCI9118
tristate "ADLink PCI-9118DG, PCI-9118HG, PCI-9118HR support" tristate "ADLink PCI-9118DG, PCI-9118HG, PCI-9118HR support"
depends on HAS_DMA depends on HAS_DMA
select COMEDI_8254 depends on COMEDI_8254
help help
Enable support for ADlink PCI-9118DG, PCI-9118HG, PCI-9118HR cards Enable support for ADlink PCI-9118DG, PCI-9118HG, PCI-9118HR cards
@ -729,7 +745,8 @@ config COMEDI_ADL_PCI9118
config COMEDI_ADV_PCI1710 config COMEDI_ADV_PCI1710
tristate "Advantech PCI-171x and PCI-1731 support" tristate "Advantech PCI-171x and PCI-1731 support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
help help
Enable support for Advantech PCI-1710, PCI-1710HG, PCI-1711, Enable support for Advantech PCI-1710, PCI-1710HG, PCI-1711,
PCI-1713 and PCI-1731 PCI-1713 and PCI-1731
@ -773,7 +790,8 @@ config COMEDI_ADV_PCI1760
config COMEDI_ADV_PCI_DIO config COMEDI_ADV_PCI_DIO
tristate "Advantech PCI DIO card support" tristate "Advantech PCI DIO card support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
select COMEDI_8255 select COMEDI_8255
help help
Enable support for Advantech PCI DIO cards Enable support for Advantech PCI DIO cards
@ -786,7 +804,7 @@ config COMEDI_ADV_PCI_DIO
config COMEDI_AMPLC_DIO200_PCI config COMEDI_AMPLC_DIO200_PCI
tristate "Amplicon PCI215/PCI272/PCIe215/PCIe236/PCIe296 DIO support" tristate "Amplicon PCI215/PCI272/PCIe215/PCIe236/PCIe296 DIO support"
select COMEDI_AMPLC_DIO200 depends on COMEDI_AMPLC_DIO200
help help
Enable support for Amplicon PCI215, PCI272, PCIe215, PCIe236 Enable support for Amplicon PCI215, PCI272, PCIe215, PCIe236
and PCIe296 DIO boards. and PCIe296 DIO boards.
@ -814,7 +832,8 @@ config COMEDI_AMPLC_PC263_PCI
config COMEDI_AMPLC_PCI224 config COMEDI_AMPLC_PCI224
tristate "Amplicon PCI224 and PCI234 support" tristate "Amplicon PCI224 and PCI234 support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
help help
Enable support for Amplicon PCI224 and PCI234 AO boards Enable support for Amplicon PCI224 and PCI234 AO boards
@ -823,7 +842,8 @@ config COMEDI_AMPLC_PCI224
config COMEDI_AMPLC_PCI230 config COMEDI_AMPLC_PCI230
tristate "Amplicon PCI230 and PCI260 support" tristate "Amplicon PCI230 and PCI260 support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
select COMEDI_8255 select COMEDI_8255
help help
Enable support for Amplicon PCI230 and PCI260 Multifunction I/O Enable support for Amplicon PCI230 and PCI260 Multifunction I/O
@ -842,7 +862,7 @@ config COMEDI_CONTEC_PCI_DIO
config COMEDI_DAS08_PCI config COMEDI_DAS08_PCI
tristate "DAS-08 PCI support" tristate "DAS-08 PCI support"
select COMEDI_DAS08 depends on COMEDI_DAS08
help help
Enable support for PCI DAS-08 cards. Enable support for PCI DAS-08 cards.
@ -929,7 +949,8 @@ config COMEDI_CB_PCIDAS64
config COMEDI_CB_PCIDAS config COMEDI_CB_PCIDAS
tristate "MeasurementComputing PCI-DAS support" tristate "MeasurementComputing PCI-DAS support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
select COMEDI_8255 select COMEDI_8255
help help
Enable support for ComputerBoards/MeasurementComputing PCI-DAS with Enable support for ComputerBoards/MeasurementComputing PCI-DAS with
@ -953,7 +974,8 @@ config COMEDI_CB_PCIDDA
config COMEDI_CB_PCIMDAS config COMEDI_CB_PCIMDAS
tristate "MeasurementComputing PCIM-DAS1602/16, PCIe-DAS1602/16 support" tristate "MeasurementComputing PCIM-DAS1602/16, PCIe-DAS1602/16 support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
select COMEDI_8255 select COMEDI_8255
help help
Enable support for ComputerBoards/MeasurementComputing PCI Migration Enable support for ComputerBoards/MeasurementComputing PCI Migration
@ -973,7 +995,8 @@ config COMEDI_CB_PCIMDDA
config COMEDI_ME4000 config COMEDI_ME4000
tristate "Meilhaus ME-4000 support" tristate "Meilhaus ME-4000 support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
help help
Enable support for Meilhaus PCI data acquisition cards Enable support for Meilhaus PCI data acquisition cards
ME-4650, ME-4670i, ME-4680, ME-4680i and ME-4680is ME-4650, ME-4670i, ME-4680, ME-4680i and ME-4680is
@ -1031,7 +1054,7 @@ config COMEDI_NI_670X
config COMEDI_NI_LABPC_PCI config COMEDI_NI_LABPC_PCI
tristate "NI Lab-PC PCI-1200 support" tristate "NI Lab-PC PCI-1200 support"
select COMEDI_NI_LABPC depends on COMEDI_NI_LABPC
help help
Enable support for National Instruments Lab-PC PCI-1200. Enable support for National Instruments Lab-PC PCI-1200.
@ -1053,6 +1076,7 @@ config COMEDI_NI_PCIDIO
config COMEDI_NI_PCIMIO config COMEDI_NI_PCIMIO
tristate "NI PCI-MIO-E series and M series support" tristate "NI PCI-MIO-E series and M series support"
depends on HAS_DMA depends on HAS_DMA
depends on HAS_IOPORT
select COMEDI_NI_TIOCMD select COMEDI_NI_TIOCMD
select COMEDI_8255 select COMEDI_8255
help help
@ -1074,7 +1098,8 @@ config COMEDI_NI_PCIMIO
config COMEDI_RTD520 config COMEDI_RTD520
tristate "Real Time Devices PCI4520/DM7520 support" tristate "Real Time Devices PCI4520/DM7520 support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
help help
Enable support for Real Time Devices PCI4520/DM7520 Enable support for Real Time Devices PCI4520/DM7520
@ -1114,7 +1139,8 @@ if COMEDI_PCMCIA_DRIVERS
config COMEDI_CB_DAS16_CS config COMEDI_CB_DAS16_CS
tristate "CB DAS16 series PCMCIA support" tristate "CB DAS16 series PCMCIA support"
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
help help
Enable support for the ComputerBoards/MeasurementComputing PCMCIA Enable support for the ComputerBoards/MeasurementComputing PCMCIA
cards DAS16/16, PCM-DAS16D/12 and PCM-DAS16s/16 cards DAS16/16, PCM-DAS16D/12 and PCM-DAS16s/16
@ -1124,7 +1150,7 @@ config COMEDI_CB_DAS16_CS
config COMEDI_DAS08_CS config COMEDI_DAS08_CS
tristate "CB DAS08 PCMCIA support" tristate "CB DAS08 PCMCIA support"
select COMEDI_DAS08 depends on COMEDI_DAS08
help help
Enable support for the ComputerBoards/MeasurementComputing DAS-08 Enable support for the ComputerBoards/MeasurementComputing DAS-08
PCMCIA card PCMCIA card
@ -1134,6 +1160,7 @@ config COMEDI_DAS08_CS
config COMEDI_NI_DAQ_700_CS config COMEDI_NI_DAQ_700_CS
tristate "NI DAQCard-700 PCMCIA support" tristate "NI DAQCard-700 PCMCIA support"
depends on HAS_IOPORT
help help
Enable support for the National Instruments PCMCIA DAQCard-700 DIO Enable support for the National Instruments PCMCIA DAQCard-700 DIO
@ -1142,6 +1169,7 @@ config COMEDI_NI_DAQ_700_CS
config COMEDI_NI_DAQ_DIO24_CS config COMEDI_NI_DAQ_DIO24_CS
tristate "NI DAQ-Card DIO-24 PCMCIA support" tristate "NI DAQ-Card DIO-24 PCMCIA support"
depends on HAS_IOPORT
select COMEDI_8255 select COMEDI_8255
help help
Enable support for the National Instruments PCMCIA DAQ-Card DIO-24 Enable support for the National Instruments PCMCIA DAQ-Card DIO-24
@ -1151,7 +1179,7 @@ config COMEDI_NI_DAQ_DIO24_CS
config COMEDI_NI_LABPC_CS config COMEDI_NI_LABPC_CS
tristate "NI DAQCard-1200 PCMCIA support" tristate "NI DAQCard-1200 PCMCIA support"
select COMEDI_NI_LABPC depends on COMEDI_NI_LABPC
help help
Enable support for the National Instruments PCMCIA DAQCard-1200 Enable support for the National Instruments PCMCIA DAQCard-1200
@ -1160,6 +1188,7 @@ config COMEDI_NI_LABPC_CS
config COMEDI_NI_MIO_CS config COMEDI_NI_MIO_CS
tristate "NI DAQCard E series PCMCIA support" tristate "NI DAQCard E series PCMCIA support"
depends on HAS_IOPORT
select COMEDI_NI_TIO select COMEDI_NI_TIO
select COMEDI_8255 select COMEDI_8255
help help
@ -1172,6 +1201,7 @@ config COMEDI_NI_MIO_CS
config COMEDI_QUATECH_DAQP_CS config COMEDI_QUATECH_DAQP_CS
tristate "Quatech DAQP PCMCIA data capture card support" tristate "Quatech DAQP PCMCIA data capture card support"
depends on HAS_IOPORT
help help
Enable support for the Quatech DAQP PCMCIA data capture cards Enable support for the Quatech DAQP PCMCIA data capture cards
DAQP-208 and DAQP-308 DAQP-208 and DAQP-308
@ -1248,12 +1278,14 @@ endif # COMEDI_USB_DRIVERS
config COMEDI_8254 config COMEDI_8254
tristate tristate
depends on HAS_IOPORT
config COMEDI_8255 config COMEDI_8255
tristate tristate
config COMEDI_8255_SA config COMEDI_8255_SA
tristate "Standalone 8255 support" tristate "Standalone 8255 support"
depends on HAS_IOPORT
select COMEDI_8255 select COMEDI_8255
help help
Enable support for 8255 digital I/O as a standalone driver. Enable support for 8255 digital I/O as a standalone driver.
@ -1285,7 +1317,7 @@ config COMEDI_KCOMEDILIB
called kcomedilib. called kcomedilib.
config COMEDI_AMPLC_DIO200 config COMEDI_AMPLC_DIO200
select COMEDI_8254 depends on COMEDI_8254
tristate tristate
config COMEDI_AMPLC_PC236 config COMEDI_AMPLC_PC236
@ -1294,7 +1326,7 @@ config COMEDI_AMPLC_PC236
config COMEDI_DAS08 config COMEDI_DAS08
tristate tristate
select COMEDI_8254 depends on COMEDI_8254
select COMEDI_8255 select COMEDI_8255
config COMEDI_ISADMA config COMEDI_ISADMA
@ -1302,7 +1334,8 @@ config COMEDI_ISADMA
config COMEDI_NI_LABPC config COMEDI_NI_LABPC
tristate tristate
select COMEDI_8254 depends on HAS_IOPORT
depends on COMEDI_8254
select COMEDI_8255 select COMEDI_8255
config COMEDI_NI_LABPC_ISADMA config COMEDI_NI_LABPC_ISADMA