Vendor specific control requests are a significant category of USB communications. With the current framework, it is difficult for a composite gadget to handle these requests since any function could be active. This patchset/feature allows all unhandled control requests to be passed to a singular functionfs instance regardless of active configuration.
Patch 1 contains configfs changes, patch 2 contains funtionfs changes, and patch 3 adds documentation and examples. I've regrouped these patches for the 4-19 window. Jerry Zhang (3): usb: gadget: configfs: Create control_config group usb: gadget: f_fs: Add FUNCTIONFS_CONTROL_ONLY flag Documentation: usb: Add docs for configfs control requests Documentation/usb/gadget_configfs.txt | 34 ++++++++ drivers/usb/gadget/configfs.c | 114 ++++++++++++++++++++++---- drivers/usb/gadget/function/f_fs.c | 22 ++--- include/uapi/linux/usb/functionfs.h | 1 + 4 files changed, 142 insertions(+), 29 deletions(-) -- 2.18.0.399.gad0ab374a1-goog -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
