RE: [PATCH v2 1/4] usb: aspeed-vhub: add qualifier descriptor
From: Neal Liu <neal_liu@aspeedtech.com>
Date: 2021-12-01 06:31:26
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linux-aspeed, linux-usb, lkml
-----Original Message----- From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Sent: Wednesday, December 1, 2021 2:18 PM To: Neal Liu <neal_liu@aspeedtech.com> Cc: Felipe Balbi <balbi@kernel.org>; Joel Stanley <joel@jms.id.au>; Andrew Jeffery [off-list ref]; Cai Huoqing [off-list ref]; Tao Ren [off-list ref]; Julia Lawall [off-list ref]; kernel test robot [off-list ref]; Sasha Levin [off-list ref]; linux-usb@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-aspeed@lists.ozlabs.org; BMC-SW [off-list ref] Subject: Re: [PATCH v2 1/4] usb: aspeed-vhub: add qualifier descriptor On Wed, Dec 01, 2021 at 05:43:16AM +0000, Neal Liu wrote:quoted
quoted
-----Original Message----- From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Sent: Tuesday, November 30, 2021 7:45 PM To: Neal Liu <neal_liu@aspeedtech.com> Cc: Felipe Balbi <balbi@kernel.org>; Joel Stanley <joel@jms.id.au>; Andrew Jeffery [off-list ref]; Cai Huoqing [off-list ref]; Tao Ren [off-list ref]; Julia Lawall [off-list ref]; kernel test robot [off-list ref]; Sasha Levin [off-list ref]; linux-usb@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-aspeed@lists.ozlabs.org; BMC-SW [off-list ref] Subject: Re: [PATCH v2 1/4] usb: aspeed-vhub: add qualifier descriptor On Tue, Nov 30, 2021 at 06:42:53PM +0800, Neal Liu wrote:quoted
Support qualifier descriptor to pass USB30CV compliance test.Please provide more information here in this description. This does not explain what is happening here very well. Also, what is "USB30CV"?USB 3 Command Verifier (USB3CV) is the official tool for USB 3 Hub andDevice Framework testing.quoted
The USB3CV tool includes the xHCI Compliance Drivers for use with theUSB3CV. Please put that information in the changelog text.quoted
We would like to pass USB3CV - Chapter 9 Test [USB 2 devices] - DeviceQualifier Tests.quoted
A high-speed capable device that has different device information for full-speed and high-speed must have a Device Qualifier Descriptor. This patch is to support device qualifier, and the host will retrieve it throughGet Descriptor request. Again, this type of information needs to go into the changelog text. thanks, greg k-h
Okay, I'll put it in next patch. Thanks -Neal _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel