From: John Crispin <john@openwrt.org>
Date: Tue, 20 Jan 2015 06:33:49 +0000 (+0000)
Subject: comgt: Allow using non-TTY devices
X-Git-Tag: reboot~4621
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=eb6acdf6b4b90ace25bc5194c81442a84dd0a026;hp=eb6acdf6b4b90ace25bc5194c81442a84dd0a026;p=openwrt%2Fopenwrt.git

comgt: Allow using non-TTY devices

Some Huawei mobile broadband sticks utilizing the NCM protocol expose
the control channel as a cdc-wdm device node instead of a virtual TTY.
This device node does not support the terminal ioctls. This patch
adds a check whether the provided device is a TTY or not and does not
attempt to use the terminal ioctls if they are not supported.

v2: reduce diffstat by simplifying code a little
Signed-off-by: Matti Laakso <malaakso@elisanet.fi>

SVN-Revision: 44054
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