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Commit 0e0367e9 authored by Jan Dumon's avatar Jan Dumon Committed by David S. Miller
Browse files

hso: Fix for 5 sec timeouts with v2.x firmware 



Don't send flow control settings to any port other than the modem port.
Older firmware ignored this request but did sent a reply. Newer firmware just
ignores it without reply and causes a 5 second timeout every time a port
(except for the modem port) is opened or if tiocm settings are changed.

Signed-off-by: default avatarJan Dumon <j.dumon@option.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 68a351c5

drivers/net/usb/hso.c

+4 −0
Original line number Diff line number Diff line
@@ -1723,6 +1723,10 @@ static int hso_serial_tiocmset(struct tty_struct *tty, struct file *file, 
		D1("no tty structures");

		return -EINVAL;

	}



	if ((serial->parent->port_spec & HSO_PORT_MASK) != HSO_PORT_MODEM)

		return -EINVAL;



	if_num = serial->parent->interface->altsetting->desc.bInterfaceNumber;



	spin_lock_irqsave(&serial->serial_lock, flags);