From: Wesley Cheng <wcheng@codeaurora.org>
To: robh+dt@kernel.org, frowand.list@gmail.com, balbi@kernel.org,
gregkh@linuxfoundation.org, agross@kernel.org,
bjorn.andersson@linaro.org
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org, linux-arm-msm@vger.kernel.org,
jackp@codeaurora.org, fntoth@gmail.com,
Wesley Cheng <wcheng@codeaurora.org>
Subject: [PATCH v13 2/6] usb: gadget: configfs: Check USB configuration before adding
Date: Thu, 8 Jul 2021 17:27:50 -0700 [thread overview]
Message-ID: <1625790474-8376-3-git-send-email-wcheng@codeaurora.org> (raw)
In-Reply-To: <1625790474-8376-1-git-send-email-wcheng@codeaurora.org>
Ensure that the USB gadget is able to support the configuration being
added based on the number of endpoints required from all interfaces. This
is for accounting for any bandwidth or space limitations.
Signed-off-by: Wesley Cheng <wcheng@codeaurora.org>
---
drivers/usb/gadget/configfs.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 15a607c..f4c7c82 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -1404,6 +1404,10 @@ static int configfs_composite_bind(struct usb_gadget *gadget,
goto err_purge_funcs;
}
}
+ ret = usb_gadget_check_config(cdev->gadget);
+ if (ret)
+ goto err_purge_funcs;
+
usb_ep_autoconfig_reset(cdev->gadget);
}
if (cdev->use_os_string) {
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2021-07-09 0:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-09 0:27 [PATCH v13 0/6] Re-introduce TX FIFO resize for larger EP bursting Wesley Cheng
2021-07-09 0:27 ` [PATCH v13 1/6] usb: gadget: udc: core: Introduce check_config to verify USB configuration Wesley Cheng
2021-07-09 0:27 ` Wesley Cheng [this message]
2021-07-09 0:27 ` [PATCH v13 3/6] usb: dwc3: Resize TX FIFOs to meet EP bursting requirements Wesley Cheng
2021-07-09 5:41 ` Greg KH
2021-07-09 0:27 ` [PATCH v13 4/6] of: Add stub for of_add_property() Wesley Cheng
2021-07-09 0:27 ` [PATCH v13 5/6] usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default Wesley Cheng
2021-07-09 0:27 ` [PATCH v13 6/6] dt-bindings: usb: dwc3: Update dwc3 TX fifo properties Wesley Cheng
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