On Tue, Jul 6, 2010 at 1:22 PM, Ohad Ben-Cohen <ohad@xxxxxxxxxx> wrote: > Note: the wl1271 device does support standard card detection, but > AFAIK there's a limitation to use that with the specific omap > controller the device is hardwired to. I will try to get more info > about that, but probably Madhu can comment on that better. Some correction and additional info: The wl1271 device has an issue which makes the standard card detect mechanism irrelevant: it is always up, even if the power enable gpio input of the device is down (the power enable input does not supply the power to the chip, it's just logical digital high/low input upon which the device reacts). That's why we must use software control for emulating card detect with that device. In addition, as far as I could find out, the card detect mechanism on the ZOOM is implemented by mechanical means, and thus is not relevant for hardwired embedded SDIO devices (I'm not even sure card detect is supported for the 3rd mmc controller). -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
