Commit:     4ef7af50373778ee248a2493c9cf62a2299806a8
Parent:     35cc0b975057389548bfe5703d438fe0deb4807e
Author:     Anton Vorontsov <[EMAIL PROTECTED]>
AuthorDate: Tue Jul 31 00:38:43 2007 -0700
Committer:  Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue Jul 31 15:39:40 2007 -0700

    SPI loopback mode definition
    Loopback mode is supported by various controllers.  This mode can be
    useful for testing, especially in conjunction with spidev driver.
    Signed-off-by: Anton Vorontsov <[EMAIL PROTECTED]>
    Signed-off-by: David Brownell <[EMAIL PROTECTED]>
    Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
    Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
 include/linux/spi/spi.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 302b81d..e180615 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -77,6 +77,7 @@ struct spi_device {
 #define        SPI_CS_HIGH     0x04                    /* chipselect active 
high? */
 #define        SPI_LSB_FIRST   0x08                    /* per-word 
bits-on-wire */
 #define        SPI_3WIRE       0x10                    /* SI/SO signals shared 
+#define        SPI_LOOP        0x20                    /* loopback mode */
        u8                      bits_per_word;
        int                     irq;
        void                    *controller_state;
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