Hi,
Here's a patch against 2.4.19-pre3 for the USB ipaq driver that fixes a
bug where the connection could get messed up. The patch is by Ganesh
Varadarajan.
thanks,
greg k-h
diff -Nru a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
--- a/drivers/usb/serial/ipaq.c Wed Mar 13 10:29:11 2002
+++ b/drivers/usb/serial/ipaq.c Wed Mar 13 10:29:11 2002
@@ -9,6 +9,16 @@
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
+ * (8/3/2002) ganesh
+ * The ipaq sometimes emits a '\0' before the CLIENT string. At this
+ * point of time, the ppp ldisc is not yet attached to the tty, so
+ * n_tty echoes "^ " to the ipaq, which messes up the chat. In 2.5.6-pre2
+ * this causes a panic because echo_char() tries to sleep in interrupt
+ * context.
+ * The fix is to tell the upper layers that this is a raw device so that
+ * echoing is suppressed. Thanks to Lyle Lindholm for a detailed bug
+ * report.
+ *
* (25/2/2002) ganesh
* Added support for the HP Jornada 548 and 568. Completely untested.
* Thanks to info from Heath Robinson and Arieh Davidoff.
@@ -154,6 +164,8 @@
*/
port->tty->low_latency = 1;
+ port->tty->raw = 1;
+ port->tty->real_raw = 1;
/*
* Lose the small buffers usbserial provides. Make larger ones.
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