At Mon, 10 Jun 2019 18:29:33 -0400 Daniel Kulp <[email protected]> wrote:
> > > > > > On Jun 10, 2019, at 6:08 PM, Robert Heller <[email protected]> wrote: > > At Mon, 10 Jun 2019 16:34:53 -0400 Daniel Kulp <[email protected]> wrote: > >> On Jun 10, 2019, at 4:26 PM, Robert Heller <[email protected]> wrote: > >>> > >>> At Mon, 10 Jun 2019 12:48:56 -0700 (PDT) [email protected] > >>> wrote: > >>>> It's not enabled in the bone kernels: > >>>> > >>>> > >>>> # CONFIG_PINCTRL_MCP23S08 is not set > >>> > >>> In the updated kernel is is enabled. > >> > >> I don't see a bone kernel with it enabled, either 4.14 or 4.19: > > “bone kernel” > > That’s important. The TI kernels are not usable for my application. I need > to use the bone kernel. (At least for the 4.9 and 4.14 series… haven’t had > time to test with the TI 4.19 series kernels) Ah. I see. What sorts of differences are there between the TI kernels and the Bone kernels? Is there some reason the Bone don't have the MCP23S08 module enabled? Wondering if a bug/feature request might make sense... > > My initial reply was to RobertCNelson’s response that it’s enabled in the > newer kernels to point out that it’s not enabled in ALL the newer kernels, > just the “ti” channel kernels. > > I’ve been playing around with a pcf8574 i2c gpio expander as that module is > available in the bone kernel. The main problem with the pcf8574 is it only > supports the 100khz i2c speed which sucks when you also have an i2c OLED on > the bus. Updating to 400khz is important with that thing. Your mention of > the MCP23008 is very timely as I was just beginning to start looking at other > options. Just kind of hoping that future bone kernels would have the driver > built in. Would be a big help if I don’t have to rebuild kernels. > > -- Robert Heller -- 978-544-6933 Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services [email protected] -- Webhosting Services -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/20190610233607.6561526C0006%40sharky3.deepsoft.com. For more options, visit https://groups.google.com/d/optout.
