Messages in this thread |  | | Date | Sun, 27 Feb 2022 23:06:58 +0000 (GMT) | From | "Maciej W. Rozycki" <> | Subject | Re: [PATCH v2 2/2] serial: 8250: Report which option to enable for blacklisted PCI devices |
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On Sat, 26 Feb 2022, Maciej W. Rozycki wrote:
> On Fri, 25 Feb 2022, Greg Kroah-Hartman wrote: > > > We don't do this for any other driver subsystem, so why is it really > > needed? What is so special about this driver that distros can't > > just enable all of the drivers and all is good? What is keeping those > > drivers fromb eing enabled? > > My justification is we have a supposedly generic PCI 8250 UART driver, > except it explicitly and silently refuses to handle a handful of devices > chosen by their PCI IDs based on that they may have extra features, even > though they are otherwise fully compatible with a generic 8250.
Actually as it happens we do have a precedent too, as here's what I have just spotted on my laptop by chance when hibernating:
psmouse serio1: synaptics: The touchpad can support a better bus than the too old PS/2 protocol. Make sure MOUSE_PS2_SYNAPTICS_SMBUS and RMI4_SMB are enabled to get a better touchpad experience.
(with a distribution kernel, so clearly whoever packaged that has not enabled what might be needed). Someone else wanted to be helpful too as it seems.
Maciej
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