Lines Matching +full:output +full:- +full:polarity +full:- +full:invert

36 .Bd -ragged -offset indent
45 .Bd -literal -offset indent
54 device is associated with a single chip-select
56 with that chip-select line asserted.
58 SPI data transfers are inherently bi-directional; there are no separate
67 output buffers.
75 .Bl -tag -width indent
83 .Bd -literal
91 The buffers for the transfer are a previously-mmap'd region.
100 is non-zero, the data appears in the memory region immediately
104 .Bd -literal
121 Get the SPI mode (clock polarity and phase) to be used
124 Set the SPI mode (clock polarity and phase) to be used
136 .Bl -tag -width indent
146 The chip-select number to assert when performing I/O for this device.
147 Set the high bit (1 << 31) to invert the logic level of the chip select line.
149 The SPI mode (0-3) to use when communicating with this device.
161 The most commonly-used ones are documented below.
166 .Bl -tag -width indent
171 .It Va spi-max-frequency
180 .Bl -tag -width indent
181 .It Va spi-cpha
184 .It Va spi-cpol
186 polarity (CPOL) mode.
187 .It Va spi-cs-high
191 .Bl -tag -width -compact