staging: comedi: adv_pci1710: separate out PCI-1720 support as a new driver
The PCI-1710 series boards are multifunction data acquisition boards with analog inputs and outputs, digital inputs and outputs, and counter/timer functions. The PCI-1720 is a simple 4 channel analog output board. It also uses a unique register map. Separate out the PCI-1720 support as a new driver, adv_pci1720, to ease maintainability. Fix some issues with the PCI-1720 support in the new driver: 1) the registers are all 8-bit 2) remove the analog output "reset" when the driver attaches/detaches 3) disable "synchronized output" to simplify the analog outputs 4) remove the need for the private data 5) add support for the BoardID register to allow multiple cards Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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