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spi: indicate in the docs that per-transfer bpw setting is not supported 

Currently it's not implemented by any driver so add a note to the
documentation.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Paul Fertser 2011-08-30 09:39:05 +04:00 committed by Sascha Hauer
parent 686bd976a6
commit d68f29f08f
1 changed files with 2 additions and 1 deletions
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3
include/spi/spi.h
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@ -37,7 +37,8 @@ struct spi_board_info {
* powers of two bytes (e.g. 20 bit samples use 32 bits).
* This may be changed by the device's driver, or left at the
* default (0) indicating protocol words are eight bit bytes.
* The spi_transfer.bits_per_word can override this for each transfer.
* The spi_transfer.bits_per_word can override this for each transfer
* (FIXME: not currently implemented).
* @irq: Negative, or the number passed to request_irq() to receive
* interrupts from this device.
* @controller_state: Controller's runtime state