On Tue, 3 Nov 2009, Alan Cox wrote: > With the bugs Nicolas reported hopefully now nailed. Progress, but still not there yet. I'm still using the same "cat /dev/ttySDIO0" test with a GPS card. Yanking the card out does terminate the cat process properly. Inserting the card back in and restarting cat always fails with: cat: /dev/ttySDIO0: Input/output error The same thing occurs if I terminate cat with ^C instead of pulling the card out. >From what I can see, sdio_uart_open() and sdio_uart_activate() are called on the first cat invocation, and then sdio_uart_close() and sdio_uart_shutdown() when cat is stopped with ^C. However neither sdio_uart_open() nor sdio_uart_activate() is ever called anymore with any subsequent cat invocations until a reboot. Some upper layer must have taken upon itself to return -EIO to user space. Nicolas -- 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
