On Sat, Aug 24, 2019 at 5:51 PM Mark A. Yoder <[email protected]> wrote:
> I see the ADC's there and I see the BMP085. I got the BMP085 to appear > using: > > *echo bmp085 0x77 > /sys/class/i2c-adapter/i2c-2/new_device* > > It looks like the MPU6050 driver requires a valid Interrupt GPIO to be passed to it for working properly ( I'm not 100% sure if this is the case with MPU6050 as I have experience working with MPU9250 from the same family), this can be clearly understood by looking if the dmesg logs show a " trigger probe fail " message. If this is the case then I'm not sure if there exists a proper way to instantiate the device from userspace (like echo > i2c-adapter/new_device). I don't know how to get the MPU6050 to appear. > > I think using a Device Tree Overlay is the proper way to do it, an overlay like https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BBBLUE-MPU9250-00A0.dts can be used as reference > --Mark > > On Friday, August 23, 2019 at 3:02:51 PM UTC-4, Vaishnav MA wrote: >> >> Hi, >> >> I believe the MPU6050 shows up as an IIO device under : /sys/bus/iio/ >> devices/iio\:deviceX >> >> Regards >> Vaishnav >> >> On Sat, Aug 24, 2019 at 12:00 AM Mark A. Yoder <[email protected]> >> wrote: >> >>> I just wired up a mpu6050 to the i2c-2 bus on my BeagleBone Black. >>> lsmod shows: >>> >>> bone$ *lsmod* >>> Module Size Used by >>> bmp280_i2c 16384 0 >>> bmp280 20480 1 bmp280_i2c >>> *inv_mpu6050_i2c 16384 0* >>> *inv_mpu6050 20480 1 inv_mpu6050_i2c* >>> evdev 24576 1 >>> usb_f_mass_storage 53248 2 >>> usb_f_acm 16384 2 >>> u_serial 20480 3 usb_f_acm >>> usb_f_ecm 20480 2 >>> usb_f_rndis 32768 4 >>> u_ether 20480 2 usb_f_ecm,usb_f_rndis >>> libcomposite 65536 18 >>> usb_f_ecm,usb_f_acm,usb_f_mass_storage,usb_f_rndis >>> bc_example 20480 0 >>> iptable_nat 16384 0 >>> nf_conntrack_ipv4 20480 1 >>> nf_defrag_ipv4 16384 1 nf_conntrack_ipv4 >>> nf_nat_ipv4 16384 1 iptable_nat >>> pvrsrvkm 442368 1 bc_example >>> nf_nat 32768 1 nf_nat_ipv4 >>> nf_conntrack 143360 3 nf_conntrack_ipv4,nf_nat_ipv4,nf_nat >>> iptable_mangle 16384 0 >>> iptable_filter 16384 0 >>> uio_pdrv_genirq 16384 0 >>> uio 20480 1 uio_pdrv_genirq >>> spidev 20480 0 >>> pruss_soc_bus 16384 0 >>> pru_rproc 28672 0 >>> pruss 16384 1 pru_rproc >>> pruss_intc 16384 1 pru_rproc >>> ip_tables 24576 3 iptable_mangle,iptable_filter,iptable_nat >>> x_tables 36864 3 iptable_mangle,ip_tables,iptable_filter >>> >>> What do I do next to read the device? I assume it appears somewhere is >>> user space, but I don't know where. >>> >>> --Mark >>> >>> -- >>> 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/b85ff0ee-86be-4f2a-90ef-f1a612025727%40googlegroups.com >>> <https://groups.google.com/d/msgid/beagleboard/b85ff0ee-86be-4f2a-90ef-f1a612025727%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > 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/3eb9b90c-c196-42d6-9f8a-81ebd818e03b%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/3eb9b90c-c196-42d6-9f8a-81ebd818e03b%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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/CAFPGqov7O_wWqrgD9J3OhmuErg5quWxPiDsV-iEfZ69FTQURfQ%40mail.gmail.com.
