diff options
| author | Paul Mackerras <paulus@samba.org> | 2006-05-19 15:02:42 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-05-19 15:02:42 +1000 |
| commit | 3c06da5ae5358e9d325d541a053e1059e9654bcc (patch) | |
| tree | 04c953cc82fe57cff248ac523095cd4f0d9611a7 /include/linux/spi/spi_bitbang.h | |
| parent | 4d1f3f25d9c303d1ce63b42cc94c54ac0ab2e950 (diff) | |
| parent | a54c9d30dbb06391ec4422aaf0e1dc2c8c53bd3e (diff) | |
Merge ../linux-2.6
Diffstat (limited to 'include/linux/spi/spi_bitbang.h')
| -rw-r--r-- | include/linux/spi/spi_bitbang.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h index c961fe9bf3e..16ce178f54d 100644 --- a/include/linux/spi/spi_bitbang.h +++ b/include/linux/spi/spi_bitbang.h @@ -30,6 +30,12 @@ struct spi_bitbang { struct spi_master *master; + /* setup_transfer() changes clock and/or wordsize to match settings + * for this transfer; zeroes restore defaults from spi_device. + */ + int (*setup_transfer)(struct spi_device *spi, + struct spi_transfer *t); + void (*chipselect)(struct spi_device *spi, int is_on); #define BITBANG_CS_ACTIVE 1 /* normally nCS, active low */ #define BITBANG_CS_INACTIVE 0 @@ -51,6 +57,8 @@ struct spi_bitbang { extern int spi_bitbang_setup(struct spi_device *spi); extern void spi_bitbang_cleanup(const struct spi_device *spi); extern int spi_bitbang_transfer(struct spi_device *spi, struct spi_message *m); +extern int spi_bitbang_setup_transfer(struct spi_device *spi, + struct spi_transfer *t); /* start or stop queue processing */ extern int spi_bitbang_start(struct spi_bitbang *spi); |