Re: [PATCH v9 3/4] docs: Add documentation for userspace client interface
From: Jeffrey Hugo <hidden>
Date: 2020-10-26 13:56:50
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On 10/26/2020 7:46 AM, Dan Williams wrote:
On Mon, 2020-10-26 at 07:38 -0600, Jeffrey Hugo wrote:quoted
On 10/25/2020 3:46 PM, Jakub Kicinski wrote:quoted
On Fri, 23 Oct 2020 16:17:54 -0700 Hemant Kumar wrote:quoted
+UCI driver enables userspace clients to communicate to external MHI devices +like modem and WLAN. UCI driver probe creates standard character device file +nodes for userspace clients to perform open, read, write, poll and release file +operations.What's the user space that talks to this?Multiple. Each channel has a different purpose. There it is expected that a different userspace application would be using it. Hemant implemented the loopback channel, which is a simple channel that just sends you back anything you send it. Typically this is consumed by a test application. Diag is a typical channel to be consumed by userspace. This is consumed by various applications that talk to the remote device for diagnostic information (logs and such).QMI too? Dan
Interesting question. My product doesn't use QMI. I would expect that all QMI runs through Router these days, but I am seeing some QMI channels in the downstream source. Hemant, Do you know what is the usecase for the QMI0/QMI1 channels? -- Jeffrey Hugo Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.