• William Breathitt Gray's avatar
    gpio: Add GPIO support for the ACCES 104-IDI-48 · 6ddcf9b4
    William Breathitt Gray authored
    The ACCES 104-IDI-48 family of PC/104 utility boards feature 48
    individually optically isolated digital inputs. Enabled inputs feature
    change-of-state detection capability; if change-of-state detection is
    enabled, an interrupt is fired off if a change of input level
    (low-to-high or high-to-low) is detected. Change-of-state IRQs are
    enabled/disabled on 8-bit boundaries, for a total of six boundaries.
    
    This driver provides GPIO and IRQ support for these 48 channels of
    digital input. The base port address for the device may be configured
    via the idi_48_base module parameter. The interrupt line number for the
    device may be configured via the idi_48_irq module parameter.
    Signed-off-by: default avatarWilliam Breathitt Gray <vilhelm.gray@gmail.com>
    Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
    6ddcf9b4
Makefile 5.08 KB