Hello Felipe, Hello Greg,
I've seen that you pulled a bunch of my patches. That's nice.
However, Felipe was unable to apply one of them due to some whitespace issues,
so he dropped it.
While dropping the said patch does not break anything, it makes the usb
functions configurable through configfs unavailable to be built
stand-alone. They still can be built but only as a side effect of building
some old gadgets which depend on the functions of interest, e.g. ecm,
ecm subset, eem, rndis will be built as a side effect of building g_ether.ko.
In Kconfig the problem described here manifests itself by some USB_CONFIGFS_*
entries being dependent on nonexistent USB_CONFIGFS. In practice they do not
appear in menuconfig, so they can't be selected.
This isn't terribly bad, but the goal of configfs integration is to allow
composing the gadgets of functions of choice at runtime, provided that
the functions themselves are compiled. Which, in turn, stops the
proliferation of new g_xxxx.ko gadgets and, ultimately, allows
dropping the g_xxxx.ko modules at all. And this is in contradiction
to not being able to build only f_xxxx.ko modules without building some
g_xxxx.ko gadgets.
The series I'm sending does the following:
1) fix separate building of configfs-enabled functions
2) add a piece of documentation about configfs-based usb gadgets
3) add some Documentation/ABI/* related to the newly added configfs entries
I kindly ask you to consider the series; either as a whole, or individual
patches. The patches in the series do not depend on each other. Verified by
checkpatch.
Thanks,
Andrzej
Andrzej Pietrasiewicz (3):
usb/gadget: Kconfig: fix separate building of configfs-enabled
functions
Documentation/usb: gadget_configfs
Documentation/ABI/testing: configfs-based usb gadgets
Documentation/ABI/testing/configfs-usb-gadget | 81 ++++
Documentation/ABI/testing/configfs-usb-gadget-acm | 8 +
Documentation/ABI/testing/configfs-usb-gadget-ecm | 16 +
Documentation/ABI/testing/configfs-usb-gadget-eem | 2 +-
Documentation/ABI/testing/configfs-usb-gadget-ncm | 15 +
Documentation/ABI/testing/configfs-usb-gadget-obex | 9 +
.../ABI/testing/configfs-usb-gadget-phonet | 2 +-
.../ABI/testing/configfs-usb-gadget-rndis | 2 +-
.../ABI/testing/configfs-usb-gadget-serial | 9 +
.../ABI/testing/configfs-usb-gadget-subset | 2 +-
Documentation/usb/gadget_configfs.txt | 384 ++++++++++++++++++++
drivers/usb/gadget/Kconfig | 64 ++++
12 files changed, 590 insertions(+), 4 deletions(-)
create mode 100644 Documentation/ABI/testing/configfs-usb-gadget
create mode 100644 Documentation/ABI/testing/configfs-usb-gadget-acm
create mode 100644 Documentation/ABI/testing/configfs-usb-gadget-ecm
create mode 100644 Documentation/ABI/testing/configfs-usb-gadget-ncm
create mode 100644 Documentation/ABI/testing/configfs-usb-gadget-obex
create mode 100644 Documentation/ABI/testing/configfs-usb-gadget-serial
create mode 100644 Documentation/usb/gadget_configfs.txt
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