You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

Enrik Berkhan 2196d1cf4a i2c-algo-pca: Let PCA9564 recover from unacked data byte (state 0x30) ... Currently, the i2c-algo-pca driver does nothing if the chip enters state 0x30 (Data byte in I2CDAT has been transmitted; NOT ACK has been received). Thus, the i2c bus connected to the controller gets stuck afterwards. I have seen this kind of error on a custom board in certain load situations most probably caused by interference or noise. A possible reaction is to let the controller generate a STOP condition. This is documented in the PCA9564 data sheet (2006-09-01) and the same is done for other NACK states as well. Further, state 0x38 isn't handled completely, either. Try to do another START in this case like the data sheet says. As this couldn't be tested, I've added a comment to try to reset the chip if the START doesn't help as suggested by Wolfram Sang. Signed-off-by: Enrik Berkhan <Enrik.Berkhan@ge.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Jean Delvare <khali@linux-fr.org>		16 years ago
..
Kconfig	i2c: Delete unused i2c-algo-sgi helper module	16 years ago
Makefile	i2c: Delete unused i2c-algo-sgi helper module	16 years ago
i2c-algo-bit.c	i2c-algo-bit: Fix timeout test	16 years ago
i2c-algo-pca.c	i2c-algo-pca: Let PCA9564 recover from unacked data byte (state 0x30)	16 years ago
i2c-algo-pcf.c	i2c: Set a default timeout value for all adapters	16 years ago
i2c-algo-pcf.h	…