update docs

Signed-off-by: Nshawn_he <shawn.he@huawei.com>

en/device-dev/subsystems/subsys-usbservice-overview.md

@@ -72,7 +72,7 @@
 </tr>
 <tr id="row18831119115815"><td class="cellrowborder" valign="top" headers="mcps1.2.4.1.1 "><p id="p48323975814"><a name="p48323975814"></a><a name="p48323975814"></a>int32_t ControlTransfer(USBDevicePipe &pip, const UsbCtrlTransfer &ctrl, std::vector<uint8_t> &vdata);</p>
 </td>
-<td class="cellrowborder" valign="top" headers="mcps1.2.4.1.2 "><p id="p15832129135813"><a name="p15832129135813"></a><a name="p15832129135813"></a>Performs control transaction for endpoint 0 of the device. The transmission direction is determined by the request type.</p>
+<td class="cellrowborder" valign="top" headers="mcps1.2.4.1.2 "><p id="p15832129135813"><a name="p15832129135813"></a><a name="p15832129135813"></a>Performs control transfer for endpoint 0 of the device. The transmission direction is determined by the request type.</p>
 </td>
 </tr>
 <tr id="row71857914585"><td class="cellrowborder" valign="top" headers="mcps1.2.4.1.1 "><p id="p1318619155811"><a name="p1318619155811"></a><a name="p1318619155811"></a>int32_t SetConfiguration(USBDevicePipe &pip, const USBConfig &config);</p>
@@ -128,7 +128,7 @@
 </tr>
 <tr id="row172902161193"><td class="cellrowborder" valign="top" headers="mcps1.2.4.1.1 "><p id="p16290141681918"><a name="p16290141681918"></a><a name="p16290141681918"></a>int32_t BulkRequstDataSize(const UsbDev &dev, const UsbPipe &pipe, uint32_t &length);</p>
 </td>
-<td class="cellrowborder" valign="top" headers="mcps1.2.4.1.2 "><p id="p1929141611198"><a name="p1929141611198"></a><a name="p1929141611198"></a>Reads bulk data in isochronous manner. This method is applicable to transfer of a huge amount of data.</p>
+<td class="cellrowborder" valign="top" headers="mcps1.2.4.1.2 "><p id="p1929141611198"><a name="p1929141611198"></a><a name="p1929141611198"></a>Reads bulk data during isochronous transfer. This method is applicable to transfer of a huge amount of data.</p>
 </td>
 </tr>
 <tr id="row172902161193"><td class="cellrowborder" valign="top" headers="mcps1.2.4.1.1 "><p id="p16290141681918"><a name="p16290141681918"></a><a name="p16290141681918"></a>int32_t BulkReadData(const UsbDev &dev, const UsbPipe &pipe, std::vector<uint8_t> &data);</p>
@@ -138,7 +138,7 @@
 </tr>
 <tr id="row172902161193"><td class="cellrowborder" valign="top" headers="mcps1.2.4.1.1 "><p id="p16290141681918"><a name="p16290141681918"></a><a name="p16290141681918"></a>int32_t BulkWriteData(const UsbDev &dev, const UsbPipe &pipe, const std::vector<uint8_t> &data);</p>
 </td>
-<td class="cellrowborder" valign="top" headers="mcps1.2.4.1.2 "><p id="p1929141611198"><a name="p1929141611198"></a><a name="p1929141611198"></a>Writes bulk data in isochronous manner. This method is applicable to transfer of a huge amount of data.</p>
+<td class="cellrowborder" valign="top" headers="mcps1.2.4.1.2 "><p id="p1929141611198"><a name="p1929141611198"></a><a name="p1929141611198"></a>Writes bulk data during isochronous transfer. This method is applicable to transfer of a huge amount of data.</p>
 </td>
 </tr>
 <tr id="row172902161193"><td class="cellrowborder" valign="top" headers="mcps1.2.4.1.1 "><p id="p16290141681918"><a name="p16290141681918"></a><a name="p16290141681918"></a>int32_t BulkGetWriteCompleteLength(const UsbDev &dev, const UsbPipe &pipe, uint32_t &length);</p>