> > *Using the modprobe w1-gpio produces no output.* > > *Is this where the problem is?* > > *Thanks* > > *Matt*
So, I'm not 100% sure what the problem is. I've never used One wire in linux - ever - And I'm not 100% sure what driver needs to be loaded, if any for this specific device. I'm just trying my best to help you troubleshoot the problem, because obviously there is something wrong, if the device does not show up on several boards, using several devices. So Matt, I noticed you've changed the GPIO pin here: gpios = <&gpio1 2 0>; But not here: pinctrl-single,pins = <0x34 0x37 /* gpmc_ad13.gpio1_13, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE7 - w1-gpio */ >; So do keep in mind that I'm no device tree file expert. So I'm not sure if that is bad, or not. But it *seems* wrong to me. Maybe I'm wrong ? On Mon, Apr 4, 2016 at 5:14 PM, <matthew.redd...@daf.qld.gov.au> wrote: > Hi William and Peter... > > > root@beaglebone:~# lsmod > Module Size Used by > arc4 1691 2 > zd1211rw 43946 0 > > mac80211 424813 1 zd1211rw > cfg80211 354018 2 mac80211,zd1211rw > rfkill 16672 2 cfg80211 > g_multi 50407 2 > libcomposite 15028 1 g_multi > omap_rng 4062 0 > mt7601Usta 639170 0 > > > Using the modprobe w1-gpio produces no output. > > Is this where the problem is? > > Thanks > > Matt > > > On Tuesday, April 5, 2016 at 10:08:36 AM UTC+10, William Hermans wrote: >> >> william@beaglebone:~$ sudo modprobe w1-gpio >> william@beaglebone:~$ lsmod >> Module Size Used by >> w1_gpio 3069 0 >> wire 27112 1 w1_gpio >> . . . >> >> *My understanding was that 3.8 and above kernels needed no module, simply >> the DTO. It was pre 3.8 kernels that required the kernel module. Or am I >> missing something there? Certainly, every page I'm reading referring to 3.8 >> kernel 1Wire has absolutely no reference to kernel modules.* >> >> So, perhaps, but if there is something wrong with the device tree blob >> file, the driver wont auto load. Which would give us an indication as to >> what's wrong. >> >> >> On Mon, Apr 4, 2016 at 5:01 PM, Peter Lawler <relwa...@gmail.com> wrote: >> >>> >>> >>> On 2016/04/05 9:49 AM, William Hermans wrote: >>> >>>> Ok, so the device tree seems to load but where is >>>> the output of lsmod ? It should look something like( more or less ) with >>>> hopefully the generic one-wire module also loaded. >>>> >>> >>> My understanding was that 3.8 and above kernels needed no module, simply >>> the DTO. It was pre 3.8 kernels that required the kernel module. Or am I >>> missing something there? Certainly, every page I'm reading referring to 3.8 >>> kernel 1Wire has absolutely no reference to kernel modules. >>> >>> P. >>> >>> >>> -- >>> 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 beagleboard...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > 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 beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
