On Fri, Aug 22, 2014 at 02:31:18PM +0530, Pratyush Anand wrote: > On Tue, Aug 19, 2014 at 09:51:51AM +0800, Peter Chen wrote: > > Changes for v3: > > - Add possible role switch for unsupported HNP capable OTG B-peripheral, > > see USB OTG & EH 2.0 spec page 38, this feature was deleted wrongly > > at previous revision patches. > > > > Changes for v2: > > - Move TPL support judgement out of is_target, the user can be easy to > > know if it needs to do TPL judgement. [patch 1/6] > > - Keep the unsupport device message unchange [patch 1/6] > > > > According to On-The-Go and Embedded Host Supplement to the USB Revision > > 2.0 Specification, a Targeted Host (non-PC host, OTG or Embedded host) > > is not required to support operation with all types of USB peripherals. > > It is up to the manufacturer of each Targeted Host to declare which peripherals > > the host will support and provide a list of those peripherals. This is called > > the Targeted Host's "Targeted Peripheral List" (TPL). The TPL shall accurately > > represent the device classes supported by the Targeted Host. > > > > And the TPL support is a must for USB OTG & EH certification test, and TPL > > support needs to apply for both OTG and EH, it should be decided by platform > > setting. > > > > This patchset changes TPL support behaviour like below: > > - Apply possible TPL support for all kinds of host > > - Effect TPL in code is decided by both configuration > > (CONFIG_USB_OTG_WHITELIST) and platform flag, it can avoid > > the enumeration failure by choosing TPL configuration wrongly. > > > > Besides, TPL can be have a good supplement for authorized feature supplied > > by sys, Eg, TPL can be modified to match by class using interface descriptor, etc. > > It may help give some suggestions for recently badUSB report. > > http://venturebeat.com/2014/07/31/why-you-can-no-longer-trust-any-usb-device-plugged-into-your-pc/ > > https://srlabs.de/badusb/ > > > > Peter Chen (6): > > usb: hcd: add TPL support flag > > usb: core: TPL should apply for both OTG and EH > > usb: core: Kconfig: TPL should apply for both OTG and EH > > usb: common: add API to get if the platform supports TPL > > usb: chipidea: add TPL support for targeted hosts > > doc: dt-binding: ci-hdrc-imx: add TPL support > > > > .../devicetree/bindings/usb/ci-hdrc-imx.txt | 2 ++ > > drivers/usb/chipidea/core.c | 4 +++ > > drivers/usb/chipidea/host.c | 1 + > > drivers/usb/common/usb-common.c | 15 +++++++++ > > drivers/usb/core/Kconfig | 12 ++----- > > drivers/usb/core/hub.c | 33 +++++++++----------- > > drivers/usb/core/otg_whitelist.h | 13 ++------ > > include/linux/usb/chipidea.h | 1 + > > include/linux/usb/hcd.h | 1 + > > include/linux/usb/of.h | 5 +++ > > 10 files changed, 50 insertions(+), 37 deletions(-) > > Reviewed-by: Pratyush Anand <pratyush.anand@xxxxxx> > Hi Greg & Alan, any comments for this patchset? -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
