If a file open in linuxspi_gpio_op_wr fails, retry after a delay#2
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facchinm merged 1 commit intofacchinm:masterfrom Aug 20, 2018
per1234:fopen-retry
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If a file open in linuxspi_gpio_op_wr fails, retry after a delay#2facchinm merged 1 commit intofacchinm:masterfrom per1234:fopen-retry
facchinm merged 1 commit intofacchinm:masterfrom
per1234:fopen-retry
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Setting the reset pin direction immediately after export doesn't allow enough time for the udev rule to give access rights to the gpio user group. This causes avrdude commands run as non-root to fail: avrdude: linuxspi_gpio_op_wr(): Unable to open file /sys/class/gpio/gpio25/direction
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Improve documentation : add linux installation instructions
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Setting the reset pin direction immediately after export doesn't allow enough time for the udev rule to give access rights to the gpio user group. This causes avrdude commands run as non-root to fail:
This change has been accepted by the author of the linuxspi programmer code:
kcuzner/avrdude#17