On 9/12/2018 23:57, Kristian Evensen wrote:
On Wed, Sep 12, 2018 at 6:32 PM Lars Melin <larsm17@xxxxxxxxx> wrote:
You have chosen a platform which has limited usb resources and want to
solve that problem by adjusting the device driver?
No, you asked for a good reason for why disabling and not just
ignoring an interface makes sense, and I think that supporting
multiple EP06 on platforms with limited endpoints qualifies as a
reason. My motivation behind this patch and modifying the driver, is
to make the driver work with the different options/combinations
supported by the modem. The platforms I am working on merely triggered
the error and inspired the change.
Why don't you just unbind those interfaces which you are not using and
which are eating up your usb resources?
As far as I know, unbinding interfaces from the driver does not free
up the memory allocated to the interface by/on the USB controller. I
also tried, just in case, and the output from lsusb is the same
regardless of bind/unbind.
Btw, the patch for the QMI driver has been accepted, since you
mentioned that driver earlier. So the assumption about interface four
is removed from there.
BR,
Kristian
That the patch has qmi-wwan patch has been accepted does not change the
fact that you are solving your problems in the wrong end.
You are using the OEM re-branding AT cmd to change the interface
composition without changing the vid and pid at the same time, this is a
big donut and the whole reason for why you have submitted patches which
shouldn't be needed.
rgds
/Lars
