librem5: enable usb network

With !1099 (merged), the usb0 interface is up on the phone, and a corresponding interface is created on the host, but pmb doesn't seem to enable dhcpcd on it for some reason.

changed milestone to %[device] Librem 5 support

By clayton craft on 2020-03-26T06:21:13

added category::device type::feature labels

I've been meaning to comment this on the MR, but it was merged a bit quickly:

Why do we handle USB setup differently on Librem5? We have the configfs setup in postmarketos-mkinitfs that should work for any sane mainline USB gadget driver, including the Librem5. It sets up only USB network.

It's just really weird when only the Librem5 has USB network + USB serial + dummy mass storage for some reason. We should handle all devices the same way, IMO.

By Minecrell on 2020-03-26T19:03:53

Why do we handle USB setup differently on Librem5? We have the configfs setup in postmarketos-mkinitfs that should work for any sane mainline USB gadget driver, including the Librem5. It sets up only USB network.

Well, it doesn't work, and I don't know why yet, and I haven't had time to debug it.. hence this issue.

It's just really weird when only the Librem5 has USB network + USB serial + dummy mass storage for some reason. We should handle all devices the same way, IMO.

I don't think we should limit functionality/capabilities (e.g. USB serial) of one device just because not every device can do it. If that's not what you are implying, can you elaborate?

By clayton craft on 2020-03-26T19:03:52

I don't think we should limit functionality/capabilities (e.g. USB serial) of one device just because not every device can do it. If that's not what you are implying, can you elaborate?

It's a matter of configuration. All mainline devices at least have drivers to emulate USB serial, mass storage etc. It's part of the kernel and does not require special hardware capabilities.

By Minecrell on 2020-03-26T19:31:11

I'm using the defconfig provided by Purism, which enables a few USB gadgets.

Anyways, this issue is about figuring out why postmarketos-mkinitfs isn't working with the USB gadget driver the Librem5 is using...

By clayton craft on 2020-03-26T19:35:29

Okay, I have opened #526 (closed)

By Minecrell on 2020-03-26T19:50:59

Fixed in !1344 (merged)

By clayton craft on 2020-06-21T07:19:58

closed via commit 973b239c

By clayton craft on 2020-06-24T08:13:22

closed via merge request !1344 (merged)

By Bart Ribbers on 2020-06-24T08:13:22

mentioned in commit 973b239c

By clayton craft on 2020-07-07T13:50:06

added device-purism-librem5 label