Lines Matching +full:system +full:- +full:bus
30 .Nd GPIO bus system
34 .Bd -ragged -offset indent
44 .Bd -ragged -offset indent
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75 .Li RISC-V
77 .Bd -ragged -offset indent
83 system provides a simple interface to the GPIO pins that are usually
85 devices to the system.
90 .Dq General-Purpose Input/Output.
92 The BUS physically consists of multiple pins that can be configured
97 On some embedded architectures (like MIPS), discovery of the bus and
106 is used to describe the device tree, the bus discovery is done via the DTS
108 of ways where the boot loader (or Open Firmware enabled system) passes the
113 based system these hints can be used to configure drivers for devices
117 .Bl -tag -width ".Va hint.driver.unit.pin_list"
144 Any non-digit character can be used as a separator.
154 .Bl -tag -width ".Va hint.gpio.function_clear"
157 for use to the host operating system.
174 of some device in a system.