On Mon, 2018-04-23 at 14:14 +0700, Lars Melin wrote:
> On 4/23/2018 14:03, Giuseppe Lippolis wrote:
> > The dwm-158 interface 4 and 5 doesn't answer to the AT commands
> > and doesn't appears a option interface.
> > Tested on openwrt distribution (kernel 4.14 using the old blacklist
> > definitions).
> >
> > Signed-off-by: Giuseppe Lippolis <giu.lippo...@gmail.com>
> > ---
> > drivers/usb/serial/option.c | 3 ++-
> > 1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/usb/serial/option.c
> > b/drivers/usb/serial/option.c
> > index c3f252283ab9..f0c3612467a3 100644
> > --- a/drivers/usb/serial/option.c
> > +++ b/drivers/usb/serial/option.c
> > @@ -1911,7 +1911,8 @@ static const struct usb_device_id
> > option_ids[] = {
> > { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d01, 0xff) },
> > /* D-Link DWM-156 (variant) */
> > { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d02, 0xff) },
> > { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d03, 0xff) },
> > - { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff) },
> > /* D-Link DWM-158 */
> > + { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d04, 0xff),
> > /* D-Link DWM-158 */
> > + .driver_info = RSVD(4) | RSVD(5) },
> > { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7d0e, 0xff) },
> > /* D-Link DWM-157 C1 */
> > { USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e19, 0xff),
> > /* D-Link DWM-221 B1 */
> > .driver_info = RSVD(4) },
>
> Blacklisting interface 4 and 5 is correct because:
>
> MI_00 D-Link Mobile Broadband Device (cdc_ether)
> MI_02 D-Link HSPA+DataCard Diagnostics Interface (also ppp modem)
> MI_03 D-Link HSPA+DataCard NMEA Device
> MI_04 D-Link HSPA+DataCard Speech Port
Any idea what format this port speaks? Some Huawei Qualcomm-based
devices still use a TTY driver but send/receive 16-bit 8000hz PCM audio
frames via a serial port. If the D-Link does something similar, it may
still make sense to drive it via option.
> MI_05 D-Link HSPA+DataCard Debug Port
If it's FCCID KA2WM158B1 then it's a Qualcomm device, and this port may
be a DIAG port. It should also be driven by option if that's the case.
I looked but couldn't find downloadable drivers for the DWM-158 so I
couldn't double-check myself.
Dan
> MI_06 USB Mass Storage Device
>
>
> rgds
> /Lars
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