Messages in this thread | | | Subject | Re: [PATCH v6 1/4] usb: gadget: udc: core: Introduce check_config to verify USB configuration | From | Wesley Cheng <> | Date | Mon, 25 Jan 2021 17:01:46 -0800 |
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On 1/21/2021 9:17 PM, Jack Pham wrote: > Hi Wesley, > > On Thu, Jan 21, 2021 at 08:01:37PM -0800, Wesley Cheng wrote: >> Some UDCs may have constraints on how many high bandwidth endpoints it can >> support in a certain configuration. This API allows for the composite >> driver to pass down the total number of endpoints to the UDC so it can verify >> it has the required resources to support the configuration. >> >> Signed-off-by: Wesley Cheng <wcheng@codeaurora.org> >> --- >> drivers/usb/gadget/udc/core.c | 9 +++++++++ >> include/linux/usb/gadget.h | 2 ++ >> 2 files changed, 11 insertions(+) >> >> diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c >> index 4173acd..469962f 100644 >> --- a/drivers/usb/gadget/udc/core.c >> +++ b/drivers/usb/gadget/udc/core.c >> @@ -1003,6 +1003,15 @@ int usb_gadget_ep_match_desc(struct usb_gadget *gadget, >> } >> EXPORT_SYMBOL_GPL(usb_gadget_ep_match_desc); >> >> +int usb_gadget_check_config(struct usb_gadget *gadget, unsigned long ep_map) > > You should probably add a kernel-doc for this function. > > Jack > Hi Jack,
Sure, I'll update a bit more about how this API can be used.
Thanks Wesley Cheng
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