Messages in this thread Patch in this message | | | From | Alexander Holler <> | Subject | [PATCH 2/2] i2c: i2c-tiny-usb: Add parameter for optional user-defined devices. | Date | Tue, 13 Nov 2012 19:06:08 +0100 |
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Now there is an example about how to use this functionality.
Cc: Jean Delvare <khali@linux-fr.org> Cc: Till Harbaum <till@harbaum.org> Signed-off-by: Alexander Holler <holler@ahsoftware.de> --- Documentation/i2c/instantiating-devices | 2 ++ drivers/i2c/busses/i2c-tiny-usb.c | 4 ++++ 2 files changed, 6 insertions(+)
diff --git a/Documentation/i2c/instantiating-devices b/Documentation/i2c/instantiating-devices index 1dbfdf3..783a79f 100644 --- a/Documentation/i2c/instantiating-devices +++ b/Documentation/i2c/instantiating-devices @@ -246,3 +246,5 @@ modprobe my_i2c_bus devices=ds1307@0x68,pcf8563@0x51 or even at the kernel command line with my_i2c_bus.devices=ds1307@0x68,pcf8563@0x51 + +See the i2c-tiny-usb driver for an exmaple. diff --git a/drivers/i2c/busses/i2c-tiny-usb.c b/drivers/i2c/busses/i2c-tiny-usb.c index 0510636..9fd03c6 100644 --- a/drivers/i2c/busses/i2c-tiny-usb.c +++ b/drivers/i2c/busses/i2c-tiny-usb.c @@ -40,6 +40,8 @@ module_param(delay, ushort, 0); MODULE_PARM_DESC(delay, "bit delay in microseconds " "(default is 10us for 100kHz max)"); +MODULE_PARAM_I2C_OPTIONAL_DEVICES(opt_devices); + static int usb_read(struct i2c_adapter *adapter, int cmd, int value, int index, void *data, int len); @@ -236,6 +238,8 @@ static int i2c_tiny_usb_probe(struct usb_interface *interface, /* inform user about successful attachment to i2c layer */ dev_info(&dev->adapter.dev, "connected i2c-tiny-usb device\n"); + i2c_add_optional_devices(&dev->adapter, opt_devices); + return 0; error: -- 1.7.11.7
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