diff options
Diffstat (limited to 'linux/drivers')
| -rw-r--r-- | linux/drivers/media/video/v4l2-common.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/linux/drivers/media/video/v4l2-common.c b/linux/drivers/media/video/v4l2-common.c index 476b5ea5a..ef4514369 100644 --- a/linux/drivers/media/video/v4l2-common.c +++ b/linux/drivers/media/video/v4l2-common.c @@ -1625,6 +1625,41 @@ int v4l2_chip_match_host(u32 match_type, u32 match_chip) /* ----------------------------------------------------------------- */ +/* Helper function for I2C legacy drivers */ + +int v4l2_i2c_attach(struct i2c_adapter *adapter, int address, struct i2c_driver *driver, + const char *name, int (*probe)(struct i2c_client *)) +{ + struct i2c_client *client; + int err; + + client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); + if (client == 0) + return -ENOMEM; + + client->addr = address; + client->adapter = adapter; + client->driver = driver; +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,15) + client->flags = I2C_CLIENT_ALLOW_USE; +#endif + snprintf(client->name, sizeof(client->name) - 1, name); + + err = probe(client); + if (err == 0) { + i2c_attach_client(client); +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) + MOD_INC_USE_COUNT; +#endif + } + else { + kfree(client); + } + return err; +} + +/* ----------------------------------------------------------------- */ + EXPORT_SYMBOL(v4l2_norm_to_name); EXPORT_SYMBOL(v4l2_video_std_construct); @@ -1650,6 +1685,8 @@ EXPORT_SYMBOL(v4l2_chip_match_i2c_client); EXPORT_SYMBOL(v4l2_chip_ident_i2c_client); EXPORT_SYMBOL(v4l2_chip_match_host); +EXPORT_SYMBOL(v4l2_i2c_attach); + /* * Local variables: * c-basic-offset: 8 |