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Merge remote-tracking branches 'spi/fix/doc', 'spi/fix/nuc900' and 'spi/fix/rspi' into spi-linus

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Mark Brown 2014-02-11 12:08:27 +00:00
commit cf20662db4
4 changed files with 25 additions and 5 deletions
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17
Documentation/spi/spi-summary
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@ -543,7 +543,22 @@ SPI MASTER METHODS
queuing transfers that arrive in the meantime. When the driver is
finished with this message, it must call
spi_finalize_current_message() so the subsystem can issue the next
transfer. This may sleep.
message. This may sleep.
master->transfer_one(struct spi_master *master, struct spi_device *spi,
struct spi_transfer *transfer)
The subsystem calls the driver to transfer a single transfer while
queuing transfers that arrive in the meantime. When the driver is
finished with this transfer, it must call
spi_finalize_current_transfer() so the subsystem can issue the next
transfer. This may sleep. Note: transfer_one and transfer_one_message
are mutually exclusive; when both are set, the generic subsystem does
not call your transfer_one callback.
Return values:
negative errno: error
0: transfer is finished
1: transfer is still in progress
DEPRECATED METHODS