On Tue, Apr 16, 2019 at 12:45:12AM +0000, Ajay Gupta wrote: > Hi Heikki, > > > -----Original Message----- > > From: linux-usb-owner@xxxxxxxxxxxxxxx <linux-usb-owner@xxxxxxxxxxxxxxx> On > > Behalf Of Heikki Krogerus > > Sent: Monday, April 15, 2019 5:10 AM > > To: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > Cc: Ajay Gupta <ajayg@xxxxxxxxxx>; linux-usb@xxxxxxxxxxxxxxx > > Subject: [PATCH v2 6/7] usb: typec: displayport: Export probe and remove > > functions > > > > From: Ajay Gupta <ajayg@xxxxxxxxxx> > > > > VirtualLink standard extends the DisplayPort Alt Mode by utilizing also the USB 2 > > pins on the USB Type-C connector. > > It uses the same messages as DisplayPort, but not the DP SVID. At the time of > > writing, USB IF has not assigned a Standard ID (SID) for VirtualLink, so the > > manufacturers of VirtualLink adapters use their Vendor IDs as the SVID. > > > > Since the SVID specific communication is exactly the same as with DisplayPort > > alternate mode, there is no need to implement separate driver for VirtualLink. > > We'll handle the current VirtualLink adapters with probe drivers, and once there > > is SVID assigned for it, we add it to the displayport alt mode driver. > > > > To support probing drivers, exporting the probe and remove functions, and also > > changing the DP_HEADER helper macro to use the SVID of the alternate mode > > device instead of the DisplayPort alt mode SVID. > > > > Suggested-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx> > > Signed-off-by: Ajay Gupta <ajayg@xxxxxxxxxx> > > Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx> > > --- > > drivers/usb/typec/altmodes/displayport.c | 12 +++++++----- > > 1 file changed, 7 insertions(+), 5 deletions(-) > Looks like you missed adding displayport.h file. It is available in original patch below, > https://marc.info/?l=linux-usb&m=155492587224379&w=2 That's the one I picked, and I did compile the driver as well.. I'm not sure what I've done, but I'll resend the series. Sorry for the hassle. thanks, -- heikki
