3 ms·
SD cards have a write-lock. It always amazes me that it's purely physical and only a suggestion to the software.
by jarek 16y ago
SD cards have a write-lock. It always amazes me that it's purely physical and only a suggestion to the software.
- technomancy 16y agoGotta love how the write-lock switch is positioned just perfectly so that inserting it knocks the switch into read-only position.
- jarek 16y agoDoing that rather than switching into write-allowed position is a good example of fail-safe design. But yeah, I've had that happen more than once.
- nitrogen 16y agoOn some SD cards in some SD readers, the write-lock switch is too small to trigger the mechanical switch in the reader, making the card appear as read-only until tape is applied over the switch. This problem affects my BeagleBoard's OS SD card.