Re: [PATCH 11/12] usb: serial: usb_debug: add support for dbc debug device

[Lu, Baolu]

On 10/28/2015 08:33 PM, Greg Kroah-Hartman wrote:
> On Wed, Oct 28, 2015 at 04:00:42PM +0800, Lu Baolu wrote:
> > This patch add dbc debug device support in usb_debug driver.
> >
> > Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> > ---
> >   drivers/usb/serial/usb_debug.c | 29 ++++++++++++++++++++++++++---
> >   1 file changed, 26 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c
> > index ca2fa5b..d4903b0 100644
> > --- a/drivers/usb/serial/usb_debug.c
> > +++ b/drivers/usb/serial/usb_debug.c
> > @@ -32,7 +32,18 @@ static const struct usb_device_id id_table[] = {
> >   	{ USB_DEVICE(0x0525, 0x127a) },
> >   	{ },
> >   };
> > -MODULE_DEVICE_TABLE(usb, id_table);
> > +
> > +static const struct usb_device_id dbc_id_table[] = {
> > +	{ USB_DEVICE(0x1d6b, 0x0004) },
> > +	{ },
> > +};
> > +
> > +static const struct usb_device_id id_table_combined[] = {
> > +	{ USB_DEVICE(0x0525, 0x127a) },
> > +	{ USB_DEVICE(0x1d6b, 0x0004) },
> > +	{ },
> > +};
> > +MODULE_DEVICE_TABLE(usb, id_table_combined);
> You shouldn't need a "combined" module device table anymore, the module
> core was changed a while ago to remove that restriction, you should be
> able to just multiple exports of MODULE_DEVICE_TABLE and everything
> should "just work" on the export side.  Now it might not work on the usb
> core side, but that's a different issue...

Before I dive into the serial driver code, can anybody tell me, if
I remove the "combined" module device table, what should I
specify the second parameter for module_usb_serial_driver()?

The previous declaration is,

module_usb_serial_driver(serial_drivers, id_table_combined);

Thanks,
Baolu

> thanks,
>
> greg k-h

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