USB_PROPRIETARY_CHARGER POWER_SUPPLY_TYPE_USB_DCP ( Dedicated Charging Port ) AC Charger DCP Dedicated Charging Port就是wall adapter or AC charger。平时用的连到220v插座的充电器。不能枚举USB设备,可以供(4.75v< VCHG <5.25v)的稳定电压和(0.5A <IDCP <5A)的充电电流。DCP在内部将D+和D-短接...
. à 开始USB 枚举 7、4; android.c android_setup à android_work à kobject_uevent_env à USBservice ueventobserver 收到UEVENT事件。PMIC中断,检测到充电器中断Battery 里判断 charger type, 然后会使能USB, 等待主机发枚举包。收到主机发来的枚举包,会调用到android_setup 完成枚举,android_setup会...
2.When use on Xiaomi smartphones, must equip with Xiaomioriginal charger (or above QC 3.0 USB charger),and the quick charge 3.0 function will be work, otherwise, the fast charge function will DO NOT work and only shown on Normal Charge; ...
USB PD(USB Power Delivery Specification) 很多消费者一直存在误区,觉得采用USB Type-C接口和数据线的智能手机充电速度和数据传输速度肯定都会很快。后者很容易举出反例,一加手机2、联想ZUK Z1和乐1三款机型都采用了USB Type-C数据线,但是只有联想ZUK Z1数据传输速度相比普通micro-USB接口机型有所提升,一加手机2和乐...
case ANDROID_POWER_SUPPLY_TYPE_USB: props.chargerUsbOnline = true; break; case ANDROID_POWER_SUPPLY_TYPE_WIRELESS: props.chargerWirelessOnline = true; break; default: KLOG_WARNING(LOG_TAG, "%s: Unknown power supply type\n", mChargerNames[i].string()); ...
motg->chg_state = USB_CHG_STATE_PRIMARY_DONE; } } else { /* DM < VDAT_REF || DM > VLGC */ if (line_state) /* DP > VLGC or/and DM > VLGC */ motg->chg_type = USB_NONCOMPLIANT_CHARGER; else if (!dcd && floated_charger_enable) ...
FCP(Fast Charger Protocol) 上年的华为Mate 8和荣耀7,今年的荣耀V8和华为P9上搭载的FCP属于华为自家的快充技术,今年6月份,华为推出了10000mAh荣耀移动电源也支持该技术,最高达到9V/2A(18W)快充输出功率。 USB PD(USB Power Delivery Specification) 很多消费者一直存在误区,觉得采用USB Type-C接口和数据线的智能手...
3) USBType-C, 4) USBMini-A(B), 5)USB Micro-A(B) PD 3.0 芯片范例,LDR6022 为了规范快充标准,USB-IF(USB标准化组织)发布了USB PD 3.0的重要更新,旨在一统快速充电技术规范的PPS(ProgrammablePower Supply),以实现对高通QC4.0/3.0、联发科PE3.0/2.0、华为/OPPO等方案的收编,并且不允许USB接口通过非USB...
type Electric, usb wall charger, Power Supply Adapter, Universal Adapter, Desktop Charger, Fast Charger material PC Fireproof Material function QC3.0 port 1 x USB, TYPE-C output power 20W Other attributes usage Mobile Phone protection OTP, ocp, Over-charging, Overcurrent, Overvoltage private mold...
Floating charger: case POWER_SUPPLY_TYPE_USB_FLOAT:/* * limit ICL to 100mA, the USB driver will enumerate to check * if this is a SDP and appropriately set the current */smblib_info(chg,"debug float set to %d uA\n", chg->dcp_icl_ua);vote(chg->usb_icl_votable, SW_ICL_MAX_...