USB: option: fix when the driver is loaded incorrectly for some Huawei devices.
commitf12e1249c6d145bd116b2c2199b1df7a901e245d
authorma rui <m00150988@huawei.com>
Mon, 1 Nov 2010 03:32:18 +0000 (1 11:32 +0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 9 Dec 2010 21:26:54 +0000 (9 13:26 -0800)
treeb1249d8df6507f588efd492dcc5e0eb3c4c56b96
parentb8fbc33247e9d9aab009838a082a700ff35d3ebb
USB: option: fix when the driver is loaded incorrectly for some Huawei devices.

commit 58c0d9d70109bd7e82bdb9517007311a48499960 upstream.

When huawei datacard with PID 0x14AC is insterted into Linux system, the
present kernel will load the "option" driver to all the interfaces. But
actually, some interfaces run as other function and do not need "option"
driver.

In this path, we modify the id_tables, when the PID is 0x14ac ,VID is
0x12d1, Only when the interface's Class is 0xff,Subclass is 0xff, Pro is
0xff, it does need "option" driver.

Signed-off-by: ma rui <m00150988@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/serial/option.c