On 19 June 2012 01:06, Zach Pfeffer zach.pfeffer@linaro.org wrote:
On 18 June 2012 02:43, Jayeeta BANDYOPADHYAY jayeeta.banerjee@stericsson.com wrote:
Hi Zach,
Supriya requires some clarifications abt supporting USB features.
I guess these questions are for you.
Regards,
Jayeeta
From: Supriya s KARANTH Sent: Monday, June 11, 2012 5:36 PM To: Jayeeta BANDYOPADHYAY Cc: Rajaram REGUPATHY; A Sunil KAMATH Subject: Clarification on USB features for snowball
Hi Jayeeta,
I have a few questions on USB features.
MTP vs Mass Storage – Which one to use?a. MTP and USB Mass Storage are mutually exclusive. Only one of
them
should be enabled at a time.
b. In Linaro ICS the Mass storage option is not present and there is only MTP in the UI.
Looks like MTP. Does anyone else have an opinion?
AOSP comes with MTP support enabled by default presumably because Galaxy Nexus doesn't have an external SD-card slot. Iirc UMS is also supported in AOSP, there are few XDA threads available which will help you achieving this functionality on your device.
Does ECM have to be enabled?What's ECM?
Ethernet Connection Manager I assume. You probably don't need it on a hand-held device.
a. This requires changes to android specific files in the linux kernel. Since we have only one usb topic branch for both Android and
Ubuntu
is it possible to push changes to android specific files in the linux kernel?
b. There is already RNDIS class available. Do we need ECM? We can
use
either RNDIS or ECM.
USB tethering (RNDIS) option from UIa. There is currently no tethering option from UI ( for neither USB/Bluetooth/Wifi ). Who should do the UI related changes. There is a launchpad bug – 887961
I think we may want to get a thread going on this and we can handle it as a feature request.
Thanks
Supriya
-- Zach Pfeffer Android Platform Team Lead, Linaro Platform Teams Linaro.org | Open source software for ARM SoCs Follow Linaro: http://www.facebook.com/pages/Linaro http://twitter.com/#%21/linaroorg - http://www.linaro.org/linaro-blog
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