Messages in this thread |  | | Subject | Re: [PATCH v1 1/4] mhi_bus: core: Add support for MHI host interface | From | Sujeev Dias <> | Date | Thu, 3 May 2018 20:05:04 -0700 |
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Hi Pavel
On 05/03/2018 12:21 PM, Pavel Machek wrote: > Hi! > >> MHI Host Interface is a communication protocol to be used by the host >> to control and communcate with modem over a high speed peripheral bus. >> This module will allow host to communicate with external devices that >> support MHI protocol. > I have Motorola Droid 4 cellphone here, with Qualcomm GSM modem. But > it talks over serial line and USB. I guess MHI is not applicable to my > hardware? > MHI is for PCIe based modem, in any case I can't comment about commercial devices. >> +MHI Devices >> +----------- >> +Logical device that bind to maximum of two physical MHI channels. Once MHI is in >> +powered on state, each supported channel by controller will be allocated as a >> +mhi_device. > What kind of protocol is running over MHI? I guess its not AT > commands. QMI? Or something entirely different? All modem services between external modem and host go over MHI. So QMI, AT, all other data and control services go thru MHI host driver. > Pavel
Thanks Sujeev
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