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authorJean Delvare <khali@linux-fr.org>2010-08-11 18:20:57 +0200
committerJean Delvare <khali@linux-fr.org>2010-08-11 18:20:57 +0200
commitd44f19d586b6113fb5db10e1a36457f0db3b01aa (patch)
treed1bd292c092874aad3cd97faea3baf7599d6ae02 /drivers/i2c
parent9a94241afcc9a481691a9c29b7460217925b59b8 (diff)
downloadlinux-linaro-stable-d44f19d586b6113fb5db10e1a36457f0db3b01aa.tar.gz
V4L/DVB: Use custom I2C probing function mechanism
Now that i2c-core offers the possibility to provide custom probing function for I2C devices, let's make use of it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/i2c-core.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index cf14ca063181..6e1c2f54d9cf 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1461,6 +1461,13 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver)
return err;
}
+int i2c_probe_func_quick_read(struct i2c_adapter *adap, unsigned short addr)
+{
+ return i2c_smbus_xfer(adap, addr, 0, I2C_SMBUS_READ, 0,
+ I2C_SMBUS_QUICK, NULL) >= 0;
+}
+EXPORT_SYMBOL_GPL(i2c_probe_func_quick_read);
+
struct i2c_client *
i2c_new_probed_device(struct i2c_adapter *adap,
struct i2c_board_info *info,