Erkan, On Wed, 10 Jun 2015 04:36:25 -0700 Erkan Güzeler <[email protected]> wrote:
> > Hi Roger, > > I have just mounted it. and have seen some files but I don't know where I > have to start . > > ls /sys/kernel/debug > asoc gpio omapdss tracing > bdi hid pm_debug usb > clock mmc0 sched_features vram > > files like this. What kernel version are you on? Can you please try with v4.0 or v4.1-rc7? cheers, -roger > > 10 Haziran 2015 Çarşamba 14:21:34 UTC+3 tarihinde Roger Quadros yazdı: > > > > On Wed, 10 Jun 2015 04:00:38 -0700 > > Erkan Güzeler <[email protected] <javascript:>> wrote: > > > > > Thanks for your reply , > > > > > > So which file I have to change. I 'm using TI DVSDK tools. I looked this > > > video tutorial https://www.youtube.com/watch?v=Co85WsgLtto , but I > > could > > > not find*/sys/kernel/debug/omap_mux *. How to do this. > > > > Is debugfs mounted? > > > > mount -t debugfs none /sys/kernel/debug > > > > cheers, > > -roger > > > > > > > > 10 Haziran 2015 Çarşamba 12:25:05 UTC+3 tarihinde Roger Quadros yazdı: > > > > > > > > Hi, > > > > > > > > On Wed, 10 Jun 2015 01:28:10 -0700 > > > > Erkan Güzeler <[email protected] <javascript:>> wrote: > > > > > > > > > > > > > > Hi everyone, > > > > > > > > > > I'm using BBxM Rev C2 board and trying to read gpio pins. But I have > > > > some > > > > > trouble about it. I successfully read > > > > > *gpio139/MMC2_DAT7/MMC2_CLKIN/MMC3_DAT3/HSUSB3_TLL_NXT/MM3_RXDM* > > but > > > > when > > > > > I tried to read > > > > > *GPIO_156/**McBSP1_CLKR/McSPI4_CLK/SIM_CD *or another pin like > > > > *McSPI1_CS0/GPIO_174 > > > > > *I'm not able to success to read pins. > > > > > So I think that pins have different feature so I need to change > > this. > > > > > > > > > > cd /sys/class/gpio/ > > > > > echo 159 > export > > > > > cd /sys/class/gpio/gpio159 > > > > > echo "in" > direction > > > > > cat value > > > > > > > > > > for GPIO 139 is working but the others always value is ZERO . > > > > > > > > > > > > > > > Has any idea about change pin features... > > > > > > > > You will need to configure the pinmux for GPIO mode. > > > > You could do it in the device tree. > > > > > > > > mcspi1_cs0 is used as hsusb2_data6 so you can't use that as GPIO. > > > > > > > > OMAP3_CORE1_IOPAD(0x21dc, PIN_INPUT_PULLDOWN | MUX_MODE3) /* > > > > mcspi2_cs0.hsusb2_data6 */ > > > > > > > > cheers, > > > > -roger > > > > > > > > -- 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]. For more options, visit https://groups.google.com/d/optout.
