Hi Tony,
Sorry for the late reply.
On Thu, Dec 06, 2018 at 07:48:23AM -0800, Tony Lindgren wrote:
> Hi,
>
> * Johan Hovold <johan@xxxxxxxxxx> [181206 06:00]:
> > On Wed, Dec 05, 2018 at 05:54:07PM -0800, Tony Lindgren wrote:
> > Could you post the output for the two devices you have in "modem" mode?
>
> Yes correct lsusb -v output below with five UARTs with ff/ff/ff and
> two QMI ports that are already handled with an earlier commit
> 4071898bf0f4 ("net: qmi_wwan: Add USB IDs for MDM6600 modem on
> Motorola Droid 4").
Isn't it four QMI ports even (interfaces 5 through 8)?
> > How do switch modes by the way?
>
> The flash mode gets enabled with the control GPIOs. I just
> did a quick test patch for phy-mapphone-mdm6600 using module
> param for that. Then additionally the modem USB can be
> multiplexed to the PC by configuring mode in phy-cpcap-usb
> but I don't have a patch for that.
Ah, ok.
> 8< -----------------------
> Bus 001 Device 002: ID 22b8:2a70
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 0
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> idVendor 0x22b8
> idProduct 0x2a70
> bcdDevice 0.00
> iManufacturer 1 Motorola, Incorporated
> iProduct 2 Flash MZ600
> iSerial 0
> bNumConfigurations 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 4
> bAlternateSetting 0
> bNumEndpoints 3
> bInterfaceClass 255
> bInterfaceSubClass 255
> bInterfaceProtocol 255
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x85 EP 5 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0040 1x 64 bytes
> bInterval 5
Since the modem (AT) port here has an interrupt endpoint, you should add
these device ids to the option driver which can handle that.
As the comment in qcaux suggests, that driver is intended for the diag
port of some old devices where the modem port was handled by cdc-acm.
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x86 EP 6 IN
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0040 1x 64 bytes
> bInterval 32
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x05 EP 5 OUT
> bmAttributes 2
> Transfer Type Bulk
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0040 1x 64 bytes
> bInterval 32
Also, if possible please include the more compact output of usb-devices
(or /sys/kernel/debug/usb/devices) for the devices you have access to in
the commit message.
Thanks,
Johan
