On Thu, 4 Sep 2014, Anjana V Kumar wrote: > >> We see that, the three configurations listed in serial driver (CDC > >> ACM, CDC OBEX, generic serial) cannot be present together as per the > >> current implementation. Is there a specific reason why the > >> configuration values were set as 1, 2 and 3 instead of setting all to > >> 1? > > > > well, setting configuration 0 means that you're not selecting any > > configuration. Basically you go back to "Addressed" state, so you can't > > use configuration 0 for anything, really. > > > > Sorry for not being clear, I am not setting the configuration to 0. > The question was, can we set all the three configuration values of CDC > ACM, CDC OBEX, and generic serial to 1? > Was there any specific reason as to why the configuration values were > set as 1,2 and 3. We cannot have all three at the same time according > to the current "if, elseif, else" implementation,
No two configurations can have the same bConfigurationValue. If the gadget has three different configs then it must have three different config values. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
