From: Antonio Ospite <ospite@studenti.unina.it>
Date: Fri, 7 Dec 2012 11:22:45 +0000 (+0100)
Subject: am7xxx: detect unexpected responses to AM7XXX_PACKET_TYPE_DEVINFO requests
X-Git-Tag: v0.1.3~6^2~2
X-Git-Url: https://git.ao2.it/libam7xxx.git/commitdiff_plain/69c8952c3d754f6928f9628e6ce4d7de95fa846d?hp=69c8952c3d754f6928f9628e6ce4d7de95fa846d

am7xxx: detect unexpected responses to AM7XXX_PACKET_TYPE_DEVINFO requests

Under some conditions, some devices like Philips/Sagemcom PPX projectors
return a strangely small packet (e.g. an AM7XXX_PACKET_TYPE_POWER with
header_data_len == 2) in reply to an AM7XXX_PACKET_TYPE_DEVINFO, hence
NOT providing useful device info.
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