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a53c911be2
(Note: upstream comedi configuration has been overhauled, so this patch does not apply there.) Several comedi drivers call subdev_8255_init() (declared in "drivers/staging/comedi/drivers/8255.h") to set up one or more DIO subdevices. This should be provided by the 8255.ko module, but unless the CONFIG_COMEDI_8255 or CONFIG_COMEDI_8255_MODULE macro is defined, the 8255.h header uses a dummy inline version of the function instead. This means the comedi devices end up with an "unused" subdevice with 0 channels instead of a "DIO" subdevice with 24 channels! This patch provides a non-interactive COMEDI_8255 option and selects it whenever the COMEDI_PCI_DRIVERS or COMEDI_PCMCIA_DRIVERS options are selected. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>