If bus testing fails due to the bus being seen as busy, it might be helpful for developers to know which line is unexpectedly low.
Signed-off-by: Jean Delvare <[email protected]> Cc: Alex Deucher <[email protected]> --- drivers/i2c/algos/i2c-algo-bit.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- linux-3.0.orig/drivers/i2c/algos/i2c-algo-bit.c 2011-10-03 18:50:34.000000000 +0200 +++ linux-3.0/drivers/i2c/algos/i2c-algo-bit.c 2011-10-03 18:55:14.000000000 +0200 @@ -250,7 +250,9 @@ static int test_bus(struct i2c_adapter * sda = getsda(adap); scl = (adap->getscl == NULL) ? 1 : getscl(adap); if (!scl || !sda) { - printk(KERN_WARNING "%s: bus seems to be busy\n", name); + printk(KERN_WARNING + "%s: bus seems to be busy (scl=%d, sda=%d)\n", + name, scl, sda); goto bailout; } -- Jean Delvare Suse L3 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
