On Wed, 4 Nov 2009, Alan Cox wrote: > > >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 > > I would have expected the cat to terminate when the port is unplugged > (and the uart remove method called - doing a hangup) That works fine... the first time only. After the card is inserted back then -EIO is always returned on open() from user space, same thing as subsequent open() after ^C. > > 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. > > The first call into the driver is to sdio_uart_install which looks up the > port from tty->index and would blow up if for some reason the get method > failed. Well, same issue: I see it being called the first time. No calls what so ever afterward until the next reboot. 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
