Zephyr: USB device stack and class drivers

[jfischer-no]

USB device stack and class drivers

This issue is there to provide an overview and to coordinate the work on USB device stack and the associated class drivers and functions.

Reusable USB components under samples

(_Components which can be moved to subsys/usb_)

• [x] USB DFU class, PR #4373, developer: jfischer, status: RFC
• [ ] webusb, ...
• [ ] wpanusb, ...

Device stack

• [x] common device descriptor, PR #4199, developer: jfischer, merged
• [x] composite device support, PR #4200, developer: jfischer, merged
• [x] modular USB class drivers and functions, PR #4661

Class driver

• [x] CDC and MSC Class Header, PR #4073, developer: jfischer, merged
• [x] CDC ECM, PR #4147, developer: finikorg, status: merged
• [x] RNDIS, PR ?, developer: finikorg, status: planned?
• [x] CDC EEM, PR?, #4144, developer: loicpoulain, status: wip

Device driver

(_OT but for the completeness_)

• device driver for Kinetis USBFSOTG Controller #542
• support for STM32Cube HAL_PCD USB driver #1384, #4212
• usb_dw: USB DMA #852 (closed)

[finikorg]

The PR #4147 is about CDC ECM

[jfischer-no]

@finikorg fixed

[ydamigos]

PR #4376 adds DT support for STM32 USB device.

[ydamigos]

I don't think we should cross out STM32Cube HAL_PCD USB driver. The driver, now, supports only F4 family. I will create a new PR to make driver generic based on #1384.

[ydamigos]

PR #5163 adds support for the rest of the STM32 families.

[sathishkuttan]

I'd like to see whether there is interest in developing an audio class (2.0 or even 3.0) stack. Please let me know.

[carlescufi]

@sathishkuttan there is indeed. We talked about this today with @pawelzadrozniak and @finikorg and we'd have interest in sharing the work.

[aurel32]

I am also interested in an USB audio class in Zephyr to run on a SAM E70 board. I would be happy to help or to test code.

[larsgk]

Regarding WebUSB, I think it would be awesome if moved to subsys/usb with a few adjustments:

• [ ] Functionality to change manufacturer and product string
• [ ] Functionality to change serial runtime, e.g. to assign unique IDs from hardware
• [ ] The possibility to merge with other interfaces (e.g. CDC & WebUSB)
• [ ] License fix -> Apache2 (check with Intel?)

Also, it would be a good idea to involve Reilly Grant ( @reillyeon )

[larsgk]

created this for WebUSB: #12527

[carlescufi]

Closing this one since there is already an issue for WebUSB and USB is already up and running and fully functional.