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From:   Matt Ranostay <matt.ranostay@konsulko.com>
Date:   Sat, 29 Feb 2020 15:25:20 -0800
Message-ID: <CAJCx=gmje04sxBAeK+xcEpf7vZ5tbWxkrrd-_ZbgOA72PPXzFw@mail.gmail.com>
Subject: OBEX PBAP + iOS timeout
To:     linux-bluetooth@vger.kernel.org
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Currently having some issues with OBEX + iOS transferring the entire
contacts list via PBAP.
Looking at btmon output with Wireshark, and noticed the iOS device
timeouts out the data transfer before it completes. However on a Pixel
it transfers completely and without the timeout issue.

Note this is rather large transfer since all the contacts have base64
contact image data.

However we have a workaround/hack that increases the ACL MTU to 930
versus 310 and the data transfers complete every single time. But is
there some known issue with iOS + PBAP, and some better long term
solution possible?

Ref: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/24130

Thanks,

Matt