CN110442539A - Mobile phone OTG switching method and apparatus - Google Patents
Mobile phone OTG switching method and apparatus Download PDFInfo
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- CN110442539A CN110442539A CN201910521576.5A CN201910521576A CN110442539A CN 110442539 A CN110442539 A CN 110442539A CN 201910521576 A CN201910521576 A CN 201910521576A CN 110442539 A CN110442539 A CN 110442539A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the present application provides a kind of mobile phone OTG switching method and apparatus, in the case where mobile phone is in OTG mode, detects the current value of power bus Vbus pin in the general-purpose serial bus USB interface of the mobile phone；It is understood that, if the current value is too small, it is considered that without constituting current loop in Vbus pin, mobile phone is accessed without other electronic equipments, and then can consider that mobile phone false triggering enters OTG mode, therefore when current value is less than the first thresholding, the mobile phone is from OTG pattern switching to charge mode, when current value is greater than the second threshold value, mobile phone executes the OTG identification process under the OTG mode, avoids because of the phenomenon that entering OTG mode and can not charge normal of mobile phone mistake.
Description
Technical field
This application involves the communication technology more particularly to a kind of mobile phone OTG switching method and apparatus.
Background technique
With the development of universal serial bus (universal serial bus, USB) technology, gradually produces and be based on
OTG (On-The-Go) technology of USB, OTG technology can be no PC (personal computer, PC) the case where
Under, realize the data transmission of electric room.For example, digital camera can be made to be directly connected on printer by OTG technology,
The photo printing taken is come out.
In the prior art, in order to realize OTG function, usually at the end USB of electronic equipment (such as mobile phone, tablet computer etc.)
Mouthful add pin ID so that electronic equipment can use to the setting of pin ID realize identification between other electronic equipments and
Data interaction.In concrete application, by taking electronic equipment is to be able to achieve the mobile phone of OTG function as an example, usb protocol is provided: the ID of mobile phone
When pin is high level, mobile phone enters charge mode, which can specifically refer to: mobile phone can be charged by USB；
When the ID pin of mobile phone is low level, mobile phone be in OTG mode, which can specifically refer to: mobile phone can by USB and
Other electronic equipments execute OTG process flow, and the Vbus pin of mobile phone USB exports 5V or so electricity to other electronic equipments
Pressure.
But in the prior art, often occur normally filling after being able to achieve the mobile phone access charge power supply of OTG function
The phenomenon of electricity, to influence user's use.
Summary of the invention
The application provides a kind of mobile phone OTG switching method and apparatus, and avoiding the occurrence of mobile phone access charge power supply later can not
The phenomenon that charging normal.
The application first aspect provides a kind of mobile phone OTG switching method, comprising: in the case where mobile phone is in OTG mode,
The mobile phone detects the current value of power bus Vbus pin in the general-purpose serial bus USB interface of the mobile phone；When the current value is small
When the first thresholding, the mobile phone is from the OTG pattern switching to charge mode.When the current value is greater than the second thresholding, the mobile phone
Execute the OTG identification process under the OTG mode；Wherein, which is less than second threshold value.
In a kind of illustrative mode, which includes: the arbitrary value between 0 to 1 milliampere.
In a kind of illustrative mode, which includes: the arbitrary value between 1 milliampere to 10 milliamperes.
In a kind of illustrative mode, when the current value is less than the first thresholding, the mobile phone is from the OTG pattern switching to filling
Power mode includes: when the current value is less than the first thresholding, which terminates OTG identification process, and closes the Vbus pin
Output voltage.
The application second aspect provides one mode switching device, comprising: detection module, for being in OTG mould in mobile phone
In the case where formula, the current value of power bus Vbus pin in the general-purpose serial bus USB interface of the mobile phone is detected.Switch mould
Block is used for when the current value is less than the first thresholding, by the mobile phone from the OTG pattern switching to charge mode.Execution module is used
In when the current value is greater than the second thresholding, the OTG identification process under the OTG mode is executed, wherein first threshold value is less than
Second threshold value.
In a kind of illustrative mode, which includes: the arbitrary value between 0 to 1 milliampere；The second thresholding packet
It includes: the arbitrary value between 1 milliampere to 10 milliamperes.
In a kind of illustrative mode, which includes: switching submodule, for when the current value is less than first
In limited time, terminate the OTG identification process of the mobile phone, and close the output voltage of the Vbus pin.
The application third aspect provides a kind of mobile phone, including processor, memory and transceiver, and the memory is for storing
Instruction, which is used for and other equipment communication, and the processor is for executing the instruction stored in the memory, so that the hand
Machine executes such as the described in any item methods of the application first aspect.
The application fourth aspect provides a kind of computer readable storage medium, which has finger
It enables, when the instruction is performed, so that computer executes such as the described in any item methods of the application first aspect.
The 5th aspect of the application provides a kind of computer program product, which includes instruction, when this refers to
Order is performed, so that computer executes such as the described in any item methods of the application first aspect.
The aspect of the application the 6th provides a kind of system on chip or System on Chip/SoC, the system on chip or System on Chip/SoC and can answer
For the network equipment, the system on chip or System on Chip/SoC include: at least one communication interface, at least one processor, at least
One memory, the communication interface, memory and processor are deposited by bus bar, the processor by executing in the memory
The instruction of storage, so that method described in the application first aspect can be performed in the network equipment.
The embodiment of the present application provides a kind of mobile phone OTG switching method and apparatus, inventor has found that the prior art
In why often there is being able to achieve the phenomenon that can not charging normal after the mobile phone access charge power supply of OTG function, be because
The mobile phone mistake enters OTG mode, and specifically, in USB pin, ID pin is adjacent with ground connection (GND) pin, and at this
In the use process of mobile phone, which be may be in moist or dust environment, so that USB port is corroded, USB
Adjacent ID pin and GND pin may be because that corrosion causes short circuit in port, so that the level of the ID pin of mobile phone is pulled low,
Mobile phone mistake enters OTG mode, and then causes mobile phone that can not charge normal.Based on the discovery, in the embodiment of the present application, in hand
In the case that machine is in OTG mode, which detects power bus Vbus pin in the general-purpose serial bus USB interface of the mobile phone
Current value；If being appreciated that, the current value is too small, it is believed that without constituting current loop in Vbus pin, i.e., without it
His electronic equipment accesses mobile phone, and then can consider that mobile phone false triggering enters OTG mode, therefore when current value is less than first
In limited time, mobile phone is from OTG pattern switching to charge mode, and when current value is greater than the second threshold value, mobile phone executes the OTG mode
Under OTG identification process, thus avoid because the entering OTG mode of mobile phone mistake and the phenomenon that can not charge normal.
Detailed description of the invention
Fig. 1 is the circuit diagram of the pattern switching application scenarios of the embodiment of the present application；
Fig. 2 is the flow chart of mobile phone OTG switching method provided by the embodiments of the present application；
Fig. 3 is the illustrative view of functional configuration of mobile phone OTG switching device provided by the embodiments of the present application；
Fig. 4 is the structural schematic diagram of mobile phone provided by the embodiments of the present application.
Specific embodiment
Term used in following embodiment is intended merely to for the purpose of describing particular embodiments, and is not intended as pair
The limitation of the application.As the description of the present application and it is used in the attached claims, odd number expression form " one
It is a ", "an", "the", " above-mentioned ", "the" and " this " be intended to also include such as " one or more " this expression-form, remove
It is non-hereinafter clearly to have opposite instruction thereon.It is also understood that in the following embodiment of the application, "at least one", " one
It is a or multiple " refer to one, two or more.Term "and/or" is indicated for describing the incidence relation of affiliated partner
There may be three kinds of relationships；For example, A and/or B, can indicate: individualism A exists simultaneously A and B, the feelings of individualism B
Condition, wherein A, B can be odd number or plural number.Character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
The reference " one embodiment " described in the present specification or " some embodiments " etc. mean the one of the application
It include special characteristic, structure or the feature in conjunction with embodiment description in a or multiple embodiments.As a result, in the present specification
The sentence " in one embodiment " of difference appearance, " in some embodiments ", " in some other embodiment ", " In
In other embodiment " etc. it is uninevitable all referring to identical embodiment, mean " one or more but not all
Embodiment ", only otherwise in addition especially emphasize.The terms "include", "comprise", " having " and their deformation are all
Mean " including but not limited to ", only otherwise in addition especially emphasizes.
The following present the electronic equipment for having OTG function, for the user interface of such electronic equipment and for making
With the embodiment of such electronic equipment.In some embodiments, electronic equipment can be also such as personal comprising other functions
The portable electronic device of digital assistants and/or music player functionality, such as mobile phone, have wireless telecommunications function at tablet computer
The wearable electronic (such as smartwatch) of energy.The exemplary embodiment of portable electronic device includes but is not limited to carry Or the portable electronic device of other operating systems.Above-mentioned portable electronic device
It is also possible to other portable electronic devices, laptop computer (laptop) etc..It is to be further understood that other one
In a little embodiments, above-mentioned electronic equipment may not be portable electronic device, but desktop computer.Mobile phone mobile phone mobile phone hand
Hand set mobile phone mobile phone mobile phone
Mobile phone involved in the embodiment of the present application may include hardware layer, operate in operating system layer on hardware layer,
And operate in application layer on operating system layer.The hardware layer includes central processing unit (central processing
Unit, CPU), the hardware such as memory management unit (memory management unit, MMU) and memory (also referred to as main memory).It should
Operating system can be any one or more computer operating system that business processing is realized by process (process), example
Such as, (SuSE) Linux OS, Unix operating system, Android operation system, iOS operating system or Windows operating system etc..
The application layer includes the application such as browser, address list, word processor, instant communication software.
In concrete application, (OTG equipment is referred to as) in the mobile phone for having OTG function, OTG equipment often occurs
It is existing that the OTG that can not be charged normal is set the phenomenon that having no idea to charge normal after USB interface accesses charge power supply
In standby processing mode, it will usually which directly replacement USB interface results in waste of resources.
And inventor has found not charging normal after OTG equipment access charge power supply, it may be possible to because of OTG device Errors
Cause into OTG mode.Specifically, in USB pin, ID pin is adjacent with ground connection (GND) pin, and makes in mobile phone
With in the process, mobile phone be may be in moist or dust environment, so that the USB port of mobile phone is corroded, USB port
In adjacent ID pin and GND pin may be because that corrosion causes short circuit so that the level of ID pin is pulled low, mobile phone mistake
Into OTG mode.And it is common, charge mode and OTG mode in mobile phone are the modes of mutual exclusion, specifically, for charging
The mobile phone of mode does not respond on cell phone software then if there is the request of OTG, continues charge mode；Similarly, for being in
The mobile phone of OTG mode does not respond on cell phone software then if there is charge request, continues OTG mode.So as to cause there is hand
The phenomenon that can not being charged normal after machine access charge power supply.
Based on the discovery, the embodiment of the present application detects the current value of Vbus pin using the gallon unit in mobile phone,
And then determine mobile phone whether false triggering OTG mode.Specifically, Fig. 1 is the pattern switching application scenarios of the embodiment of the present application
Circuit diagram, as shown in Figure 1, the mobile phone of the embodiment of the present application may include USB connector 10, processor 20 and gallon
Unit 30.
Specifically, USB connector 10 may include five pins: ID pin, GND pin, D- pin, D+ pin and Vbus
Pin.Wherein, one end of gallon unit 30 connects Vbus pin, and the other end of gallon unit 30 connects processor
20, processor 20 can detect the current value of Vbus pin by gallon unit 30；ID pin is connect with processor 20, is led to
Cross processor 20 it is available or control ID pin level state (high level or low level) etc.；D- pin, D+ pin and place
It manages device 20 to connect, in the case where USB connector is connected to other electronic equipments, which can pass through D- pin
And/or D+ pin and progress data communication of processor 20 of mobile phone etc.；Vbus pin is also connect with processor 20, passes through processor
20 available or control Vbus pin level states (high level or low level) etc.；GND pin is connect with processor 20, real
Existing USB connector 10 and the common ground connection of processor 20 etc..
Connection in the embodiment of the present application can be the connection that the modes such as welding, coupling are realized, the embodiment of the present application is to this
It is not especially limited.
Common, when the ID pin of mobile phone is high level, mobile phone is in charge mode, and mobile phone can charge normal, show
The voltage of the ID pin of example can be 1.8V or higher；When the ID pin of mobile phone is low level, mobile phone is in OTG mode,
Mobile phone can execute OTG process flow, and Vbus exports the voltage of about 5V, while D- pin or D+ pin can be connect with mobile phone
Electronic equipment carry out communication interaction.
It should be noted that, when the ID pin of mobile phone is low level, indicating that the mobile phone is that OTG master sets in OTG mode
It is standby, adaptation, other electronic equipments for carrying out OTG communication with the mobile phone are OTG from equipment, and main equipment can be sent to from equipment
Control instruction, from equipment can according to the control instruction carry out corresponding operation, it is exemplary, from equipment be printer the case where
Under, which can be the instruction for being used to indicate printing, and printer can execute printing in response to the control instruction.
It is appreciated that being realized if other electronic equipments are also able to achieve OTG function in mobile phone and other electronic equipments
After OTG connection, mobile phone can be realized according to the setting of the ID pin of the setting and other electronic equipments of the ID pin of mobile phone
With the OTG roles of other electronic equipments replacement (as main equipment or as from equipment), the embodiment of the present application does not make this to have
Body limits.
In practical application, processor 20 can be used as the executing subject for executing mobile phone OTG switching method, and processor 20 can be with
It is the central processing unit etc. of mobile phone.Gallon unit 30 can be determined according to actual application scenarios, exemplary, electric current
Probe unit 30 can be made of electrical parts such as resistance, transistors.It is appreciated that can be managed by Vbus in common mobile phone
Gallon unit 30 between foot and processor 20 realizes the detection to the electric current of Vbus pin, and passes through analog-digital converter
(Analog-to-Digital Converte, ADC) carries out the reading of register, so as to obtain the electric current of Vbus pin
Value.The embodiment of the present application is not especially limited processor 20 and gallon unit 30.
Fig. 2 is the flow chart for the mobile phone OTG switching method that the embodiment of the present application one provides, as shown in Fig. 2, based on Fig. 1's
Circuit configuration, method provided in this embodiment may comprise steps of:
Step S101: in the case where mobile phone is in OTG mode, it is total which detects power supply in the USB interface of the mobile phone
The current value of line Vbus pin.
In the embodiment of the present application, OTG mode can specifically refer to: mobile phone can execute OTG by USB and other electronic equipments
Process flow, and the Vbus pin of mobile phone USB exports 5V or so voltage to other electronic equipments.
In concrete application, it can determine whether mobile phone enters OTG mode by the level state of the ID pin of USB port,
Specifically, mobile phone ID pin be low level situation under, it is believed that mobile phone is in OTG mode.
It is appreciated that can also determine whether mobile phone enters OTG mode by other means in practical application, for example, In
After mobile phone accesses charge power supply, if mobile phone can not charge normal, it is also assumed that mobile phone is in OTG mode, the embodiment of the present application
It is not specifically limited to whether determining mobile phone enters OTG mode.
In the embodiment of the present application, in the case where mobile phone is in OTG mode, mobile phone detects the universal serial bus of the mobile phone
The current value of power bus Vbus pin in USB interface.Specifically, referring to Fig.1, can by Vbus pin and processor 20 it
Between gallon unit 30 realize the detection to the electric current of Vbus pin, and pass through analog-digital converter (analog-to-
Digital converte, ADC) reading of register is carried out, so as to obtain the current value of Vbus pin.It is appreciated that
Power bus Vbus pin in the general-purpose serial bus USB interface of the mobile phone can also be detected in practical application by other means
Current value, the embodiment of the present application is not especially limited this.
Step S102: when the current value is less than the first threshold value, the mobile phone is from the OTG pattern switching to charging
Mode.
In the embodiment of the present application, the first thresholding can be determined according to actual application scenarios, in concrete application, if Vbus is managed
The current value of foot is too small, it is believed that without constituting current loop in Vbus pin, i.e., mobile phone is accessed without other electronic equipments,
Therefore, the first thresholding can be 0 or lesser value, and the first thresholding of the embodiment of the present application is not especially limited.In view of usual
The electric current accuracy of identification of gallon unit be 1mA, in the case that the actual current of Vbus pin is 0, the electric current that detects
Value is likely to be at 0~1mA, although actually there is no accesses from setting for Vbus pin that is, detect that Vbus pin is not 0
It is standby, therefore, in order to avoid the precision because of gallon unit caused by Vbus pin testing current mistake, in some realities of the application
It applies in example, above-mentioned first thresholding can be between 0~1 milliampere.
In the embodiment of the present application, in the case where the current value of Vbus pin is less than the first thresholding, it is believed that not from
Equipment accesses mobile phone, does not have current drain on VBus access, and mobile phone is because original false triggerings such as interface short circuit enter OTG mould
Formula, therefore mobile phone, from OTG pattern switching to charge mode, mobile phone can charge normal in charge mode.
In an optional implementation manner, when the current value is less than the first threshold value, the mobile phone is from the OTG
Pattern switching includes: to charge mode
When the current value is less than the first thresholding, which terminates OTG identification process, and closes the output of the Vbus pin
Voltage.
In the embodiment of the present application, when mobile phone is in OTG mode, mobile phone can execute OTG identification process automatically, specifically,
The state that mobile phone will be in carry out communication interaction from equipment, and mobile phone exports the defeated of about 5V to from equipment by Vbus pin
Therefore specific implementation of the mobile phone from OTG pattern switching to charge mode may is that mobile phone terminates OTG identification stream by voltage out
Journey, and close the output voltage of Vbus pin.In concrete application, mobile phone can be terminated by the software program in processor
OTG identification process, can also terminate the OTG identification process of mobile phone by other means, and the embodiment of the present application is not made this specifically
It limits.
Step S103: when the current value is greater than the second thresholding, which executes the OTG identification process under the OTG mode.
In the embodiment of the present application, the second thresholding is greater than the first thresholding, and the second thresholding can be true according to actual application scenarios
It is fixed, in concrete application, if the access of Vbus pin from equipment, specifically, can be USB flash disk or other OTG from equipment from equipment,
Vbus pin with from equipment may be constructed current loop, usually have higher current value in current loop, therefore, the second thresholding can
To be higher value, the second thresholding of the embodiment of the present application is not especially limited.In practical application, it is contemplated that common gallon
The electric current accuracy of identification of unit be 1mA and from the current drain size of equipment usually all in 10mA or more, therefore, the application reality
It applies in a kind of implementation of example, the second thresholding is between 1 milliampere to 10 milliamperes, the case where current value is greater than second thresholding
Under, it can determine that Vbus pin has been accessed from equipment.
In the embodiment of the present application, in the case where current value is greater than the second thresholding, it is believed that mobile phone has been accessed from equipment,
Therefore mobile phone can execute the OTG identification process under OTG mode.
In conclusion the embodiment of the present application provides a kind of mobile phone OTG switching method and apparatus, inventor sends out after study
Existing, the mobile phone for why often occurring being able to achieve OTG function in the prior art accesses what charge power supply can not charge normal later
Phenomenon is to enter OTG mode because of the mobile phone mistake, specifically, in USB pin, ID pin and ground connection (GND) pin
It is adjacent, and in the use process of the mobile phone, which may be in moist or dust environment, so that USB port
Corroded, adjacent ID pin and GND pin may be because that corrosion causes short circuit in USB port, so that the ID pin of mobile phone
Level be pulled low, mobile phone mistake enters OTG mode, and then causes mobile phone that can not charge normal.Based on the discovery, the application
In embodiment, in the case where mobile phone is in OTG mode, which detects electric in the general-purpose serial bus USB interface of the mobile phone
The current value of source bus Vbus pin；If being appreciated that, the current value is too small, it is believed that without constituting electric current in Vbus pin
Mobile phone is accessed without other electronic equipments in circuit, and then can consider that mobile phone false triggering enters OTG mode, therefore when electricity
When flow valuve is less than the first thresholding, mobile phone is from OTG pattern switching to charge mode, when current value is greater than the second threshold value, mobile phone
The OTG identification process under the OTG mode is executed, to avoid because mobile phone mistake enters OTG mode and can not normally fill
The phenomenon of electricity occurs.
Fig. 3 shows the illustrative view of functional configuration of the mobile phone OTG switching device of the embodiment of the present application, as shown in figure 3, the dress
It sets and includes:
Detection module 310, for detecting the general-purpose serial bus USB of the mobile phone in the case where mobile phone is in OTG mode
The current value of power bus Vbus pin in interface.
Switching module 320, for when the current value is less than the first thresholding, by the mobile phone from the OTG pattern switching to filling
Power mode.
Execution module 320, for when the current value is greater than the second thresholding, executing the OTG identification stream under the OTG mode
Journey, wherein first threshold value is less than second threshold value.
In a kind of illustrative mode, which includes: the arbitrary value between 0 to 1 milliampere；The second thresholding packet
It includes: the arbitrary value between 1 milliampere to 10 milliamperes.
In a kind of illustrative mode, which includes: switching submodule, for when the current value is less than first
In limited time, terminate the OTG identification process of the mobile phone, and close the output voltage of the Vbus pin.
The embodiment of the present application provides a kind of mobile phone OTG switching method and apparatus, inventor has found that the prior art
In why often there is being able to achieve the phenomenon that can not charging normal after the mobile phone access charge power supply of OTG function, be because
The mobile phone mistake enters OTG mode, and specifically, in USB pin, ID pin is adjacent with ground connection (GND) pin, and at this
In the use process of mobile phone, which be may be in moist or dust environment, so that USB port is corroded, USB
Adjacent ID pin and GND pin may be because that corrosion causes short circuit in port, so that the level of the ID pin of mobile phone is pulled low,
Mobile phone mistake enters OTG mode, and then causes mobile phone that can not charge normal.Based on the discovery, in the embodiment of the present application, in hand
In the case that machine is in OTG mode, which detects power bus Vbus pin in the general-purpose serial bus USB interface of the mobile phone
Current value；If being appreciated that, the current value is too small, it is believed that without constituting current loop in Vbus pin, i.e., without it
His electronic equipment accesses mobile phone, and then can consider that mobile phone false triggering enters OTG mode, therefore when current value is less than first
In limited time, mobile phone is from OTG pattern switching to charge mode, and when current value is greater than the second threshold value, mobile phone executes the OTG mode
Under OTG identification process, thus avoid because the entering OTG mode of mobile phone mistake and the phenomenon that can not charge normal.
Fig. 4 shows a kind of mobile phone provided by the embodiments of the present application, as shown in figure 4, the mobile phone includes processor 410, deposits
Reservoir 420 and transceiver 430, for storing instruction, which is used for and other equipment communication, at this for the memory 420
Reason device 410 is for executing the instruction stored in the memory, so that the mobile phone executes the method being somebody's turn to do such as any one of the application.
The embodiment of the present application also provides a kind of computer readable storage medium, which has finger
It enables, when the instruction is performed, so that computer executes the method being somebody's turn to do such as any one of the application.
The embodiment of the present application also provides a kind of computer program product, which includes instruction, when this refers to
Order is performed, so that computer executes the method being somebody's turn to do such as any one of the application.
The embodiment of the present application also provides a kind of system on chip or System on Chip/SoC, the system on chip or System on Chip/SoC and can answer
For the network equipment, the system on chip or System on Chip/SoC include: at least one communication interface, at least one processor, at least
One memory, the communication interface, memory and processor are deposited by bus bar, the processor by executing in the memory
The instruction of storage, so that the method being somebody's turn to do in the application can be performed in the network equipment.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
For a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine
Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase
Coupling, direct-coupling or communication connection between mutually can be through some interfaces, the INDIRECT COUPLING or communication of device or unit
Connection can be electrical property, mechanical or other forms.
Unit may or may not be physically separated as illustrated by the separation member for this, show as unit
Component may or may not be physical unit, it can it is in one place, or may be distributed over multiple nets
On network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
It is each that equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute the application
The part steps of embodiment this method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (read-only
Memory, ROM), random access memory (random access memory, RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
Claims (10)
1. a kind of mobile phone OTG switching method characterized by comprising
In the case where mobile phone is in OTG mode, the mobile phone detects power supply in the general-purpose serial bus USB interface of the mobile phone
The current value of bus Vbus pin；
When the current value is less than the first threshold value, the mobile phone is from the OTG pattern switching to charge mode；
When the current value is greater than the second threshold value, the mobile phone executes the OTG identification process under the OTG mode；
Wherein, first threshold value is less than second threshold value.
2. the method according to claim 1, wherein first thresholding includes: any between 0 to 1 milliampere
Value.
3. method according to claim 1 or 2, which is characterized in that second thresholding include: 1 milliampere to 10 milliamperes it
Between arbitrary value.
4. method according to claim 1 or 2, which is characterized in that it is described when the current value is less than the first threshold value,
The mobile phone includes: from the OTG pattern switching to charge mode
When the current value is less than the first thresholding, the mobile phone terminates OTG identification process, and closes the defeated of the Vbus pin
Voltage out.
5. a kind of mobile phone OTG switching device characterized by comprising
Detection module, for detecting the general-purpose serial bus USB interface of the mobile phone in the case where mobile phone is in OTG mode
The current value of middle power bus Vbus pin；
Switching module is used for when the current value is less than the first thresholding, by the mobile phone from the OTG pattern switching to charging
Mode；
Execution module, for executing the OTG identification process under the OTG mode when the current value is greater than the second thresholding；
Wherein, first threshold value is less than second threshold value.
6. device according to claim 5, which is characterized in that first thresholding includes: any between 0 to 1 milliampere
Value.
7. device according to claim 5 or 6, which is characterized in that second thresholding include: 1 milliampere to 10 milliamperes it
Between arbitrary value.
8. device according to claim 5 or 6, which is characterized in that the switching module includes:
Switching submodule for when the current value is less than the first thresholding, terminating the OTG identification process of the mobile phone, and is closed
Close the output voltage of the Vbus pin.
9. a kind of mobile phone, which is characterized in that including processor, memory and transceiver, the memory for storing instruction, institute
State transceiver for and other equipment communication, the processor be used for execute the instruction stored in the memory so that described
Mobile phone executes method according to any of claims 1-4.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has instruction, when
Described instruction is performed, so that computer executes method according to any of claims 1-4.
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