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| Carambola2 - Unable to export GPIO 18/19 https://www.8devices.com/community/viewtopic.php?f=13&t=1155 |
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| Author: | Dip27 [ 10 Sep 2018, 15:34 ] |
| Post subject: | Carambola2 - Unable to export GPIO 18/19 |
Hi, I want to do something with the GPIOs 18 and 19 but I cant export them. With other GPIOs (1, 13, 14, 15, 16, 20, 21, 22) it is working but especially this two cant be exported. I use this commands: echo 18 > /sys/class/gpio/export echo 19 > /sys/class/gpio/export but it prompts: ash: write error: Device or resource busy Maybe there is a module which is blocking them? I looked in the /etc/modules.d directory, but there is nothing which looks like an I2C module 02-crypto-hash 20-usb-core 30-fs-vfat 42-ipt-nat 03-crypto-manager 21-lib80211 30-ppp 45-ipt-nathelper 09-crypto-arc4 21-mac80211 40-fs-msdos 50-ledtrig-netdev 20-cfg80211 25-nls-cp437 40-ipt-core 50-wdt-ath79 20-eeprom-93cx6 25-nls-iso8859-1 40-pppox 60-leds-gpio 20-lib-crc-ccitt 25-nls-utf8 40-scsi-core 60-usb-storage 20-lib-crc-itu-t 26-ath 40-usb2 20-nls-base 27-ath9k-common 41-ipt-conntrack 20-scsi-core 28-ath9k 41-pppoe Do you have any idea how to export them? |
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| Author: | Dip27 [ 11 Sep 2018, 12:26 ] |
| Post subject: | Re: Carambola2 - Unable to export GPIO 18/19 |
If there someone with the same Problem. It seems like this is a firmware problem. Flashing a new firmware build on the carambola solves the problem according to https://github.com/8devices/carambola2/issues/65 But if someone has a simpler approach, please tell me |
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