lkml.org 
[lkml]   [2011]   [Mar]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[27/78] USB: serial: option: Apply OPTION_BLACKLIST_SENDSETUP also for ZTE MF626
2.6.38-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>

commit 7a89e4cb9cdaba92f5fbc509945cf4e3c48db4e2 upstream.

On https://bugs.launchpad.net/ubuntu/+source/linux/+bug/636091, one of
the cases reported is a big timeout on option_send_setup, which causes
some side effects as tty_lock is held. Looks like some of ZTE MF626
devices also don't like the RTS/DTR setting in option_send_setup, like
with 4G XS Stick W14. The reporter confirms which this it solves the
long freezes in his system.

Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/usb/serial/option.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -652,7 +652,8 @@ static const struct usb_device_id option
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0028, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0029, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0030, 0xff, 0xff, 0xff) },
- { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626, 0xff, 0xff, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF626, 0xff,
+ 0xff, 0xff), .driver_info = (kernel_ulong_t)&four_g_w14_blacklist },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0032, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0033, 0xff, 0xff, 0xff) },
{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0034, 0xff, 0xff, 0xff) },



\
 
 \ /
  Last update: 2011-03-22 00:45    [W:0.349 / U:0.044 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site