[rfc] Propagate manufacturer information from MMKernelDevice to MMBroadbandModem

[Bjørn Mork]

Ben Chan <benchan at chromium.org> writes:

> * The few MBIM modems I have report the correct manufacturer through
> the manufacturer string descriptor, but I suspect some MBIM modems
> don't.

FWIW, this is true for all the MBIM modems I've used so far too.  Few
vendors manage to write their name in a consistent way, but I guess that
is the same regardless of the source.

bjorn at miraculix:/var/tmp/usb$ for f in `grep -l 'CDC MBIM' */lsusb.txt`; do echo -n "$f: "; grep Manu $f; done
0bdb:1926/lsusb.txt:   iManufacturer           1 Lenovo
1199:68a2/lsusb.txt:   iManufacturer           4 Sierra Wireless, Incorporated
1199:9041/lsusb.txt:   iManufacturer           1 Sierra Wireless, Incorporated
1199:9079/lsusb.txt:   iManufacturer           1 Sierra Wireless, Incorporated
1199:a001/lsusb.txt:   iManufacturer           1 Sierra Wireless Inc.
12d1:1446/lsusb.txt:   iManufacturer           4 Huawei Technologies
12d1:157d/lsusb.txt:   iManufacturer           1 HUAWEI_MOBILE
12d1:15bb/lsusb.txt:   iManufacturer           6 Huawei Technologies Co., Ltd.
2001:7d01/lsusb.txt:   iManufacturer           9 D-Link,Inc  
258d:e000/lsusb.txt:   iManufacturer           1 Sequans Communications

What's the "correct" manufacturer, BTW?  Looking over this list, I note
that the OEM and chipset vendors Ericsson, Intel, Qualcomm and Mediatek
are all anonymous here.

The USB vendor ID gives a slightly different list, but not necessarily
more correct:

bjorn at miraculix:/var/tmp/usb$ for f in `grep -l 'CDC MBIM' */lsusb.txt`; do echo -n "$f: "; grep idVend $f; done
0bdb:1926/lsusb.txt:   idVendor           0x0bdb Ericsson Business Mobile Networks BV
1199:68a2/lsusb.txt:   idVendor           0x1199 Sierra Wireless, Inc.
1199:9041/lsusb.txt:   idVendor           0x1199 Sierra Wireless, Inc.
1199:9079/lsusb.txt:   idVendor           0x1199 Sierra Wireless, Inc.
1199:a001/lsusb.txt:   idVendor           0x1199 Sierra Wireless, Inc.
12d1:1446/lsusb.txt:   idVendor           0x12d1 Huawei Technologies Co., Ltd.
12d1:157d/lsusb.txt:   idVendor           0x12d1 Huawei Technologies Co., Ltd.
12d1:15bb/lsusb.txt:   idVendor           0x12d1 Huawei Technologies Co., Ltd.
2001:7d01/lsusb.txt:   idVendor           0x2001 D-Link Corp.
258d:e000/lsusb.txt:   idVendor           0x258d 



Bjørn