From f6beb67d8e77454200acc3755344944bd946cded Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 30 Oct 2011 13:47:25 +0100 Subject: [PATCH] i2c-algo-bit: Be verbose on bus testing failure 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 Reviewed-by: Alex Deucher --- drivers/i2c/algos/i2c-algo-bit.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index 66bebfc81c2..c20530a98ca 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c @@ -250,7 +250,9 @@ static int test_bus(struct i2c_adapter *i2c_adap) 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; } -- 2.20.1