From: Bjørn Mork Date: Mon, 22 Oct 2012 10:56:38 +0000 (+0000) Subject: net: cdc_ncm: do not bind to NCM compatible MBIM devices X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~45^2~586 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bd329e1284bc5fa6adaddd2ee9ca15328749a7a6;p=pandora-kernel.git net: cdc_ncm: do not bind to NCM compatible MBIM devices The MBIM specification allows a MBIM device to disguise itself as NCM for backwards compatibility, using additional altsettings with different subclass (control) or protocol (data): C:* #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0d Prot=00 Driver=cdc_mbim E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=7ms I:* If#= 0 Alt= 1 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=7ms I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_mbim I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_mbim E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 2 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms If the MBIM driver is enabled then that should have priority for devices providing such a NCM 1.0 backward compatibility mode. Signed-off-by: Bjørn Mork Signed-off-by: Greg Suarez Signed-off-by: David S. Miller --- Reading git-diff-tree failed