On Mon, Dec 19, 2022 at 09:51:43AM +0100, Luca Ceresoli wrote: > On Sun, 11 Dec 2022 18:55:39 +0200 > Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: > > On Thu, Dec 08, 2022 at 12:39:59PM +0200, Tomi Valkeinen wrote: ... > > This may be a stupid question, but couldn't you instead use the > > BUS_NOTIFY_ADD_DEVICE and BUS_NOTIFY_DEL_DEVICE bus notifiers ? > > I'm not sure they would be the correct tool for this task. Bus > notifiers inform about new events on the 'struct bus_type, i.e. any > event on the global i2c bus type. In the i2c world this means being > notified about new _adapters_, which is exactly what > drivers/i2c/i2c-dev.c does. > > Here, however, we need to be informed about new _clients_ being added > under a specific adapter. This is for example exactly what ACPI integration in I2C framework does. But... > I'm not sure whether the bus notifiers can > inform about new clients in addition of new adapters, but they at least > seem unable to provide per-adapter notification. ...personally I don't like notifiers, they looks like overkill for this task. > Does that seem correct? -- With Best Regards, Andy Shevchenko
