[RFC PATCH 0/2] usb: Link USB devices with their USB Type-C partner counterparts

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Hi Benson,

RFC for now. I can't test these properly. If you guys could take over
this, I would much appreciated. I hope this is at least close to your
proposal.

With this (or something like it) you should be able to get
notification about USB connections and disconnections to your port
driver by implementing the new "attach" and "deattach" callbacks in
struct typec_partner_desc. The typec partner devices will also have
symlinks to the enumerated USB devices and vise versa.

I took a little shortcut and did not implement a proper device list.
Instead there is now only a member for the USB2 device and a member
for the USB3 device in struct typec_port, so with this only USB is
supported. But the API does not deal with struct usb_device, so
extending this to support other devices (TBT, Displayport, etc.) by
adding the actual device list should be fairly easy.

thanks,

Heikki Krogerus (2):
  usb: typec: Link enumerated USB devices with Type-C partner
  usb: Inform the USB Type-C class about enumerated devices

 drivers/usb/core/hub.c          |   4 ++
 drivers/usb/core/hub.h          |   3 +
 drivers/usb/core/port.c         |  19 +++++-
 drivers/usb/typec/class.c       | 108 +++++++++++++++++++++++++++++---
 drivers/usb/typec/class.h       |  16 +++++
 drivers/usb/typec/port-mapper.c |   9 ++-
 include/linux/usb/typec.h       |  37 +++++++++++
 7 files changed, 184 insertions(+), 12 deletions(-)

-- 
2.40.1




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