本文整理汇总了Java中android.hardware.usb.UsbRequest.close方法的典型用法代码示例。如果您正苦于以下问题：Java UsbRequest.close方法的具体用法？Java UsbRequest.close怎么用？Java UsbRequest.close使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类android.hardware.usb.UsbRequest的用法示例。
在下文中一共展示了UsbRequest.close方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: close
import android.hardware.usb.UsbRequest; //导入方法依赖的package包/类
/**
* Closes the device connection.
*/
@CalledByNative
void close() {
mEndpointMap.clear();
for (UsbRequest request : mRequestMap.values()) {
request.close();
}
mRequestMap.clear();
mConnection.close();
mNativePointer = 0;
mIsClosed = true;
}
示例2: close
import android.hardware.usb.UsbRequest; //导入方法依赖的package包/类
/**
* Closes the device connection.
*/
@CalledByNative
void close() {
mEndpointMap.clear();
for (UsbRequest request : mRequestMap.values()) {
request.close();
}
mRequestMap.clear();
if (mConnection != null) {
mConnection.close();
mConnection = null;
}
}
示例3: read
import android.hardware.usb.UsbRequest; //导入方法依赖的package包/类
@Override
public int read(byte[] dest, int timeoutMillis) throws IOException {
if (mEnableAsyncReads) {
final UsbRequest request = new UsbRequest();
try {
request.initialize(mConnection, mReadEndpoint);
final ByteBuffer buf = ByteBuffer.wrap(dest);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
}
final UsbRequest response = mConnection.requestWait();
if (response == null) {
throw new IOException("Null response");
}
final int nread = buf.position();
if (nread > 0) {
//Log.d(TAG, HexDump.dumpHexString(dest, 0, Math.min(32, dest.length)));
return nread;
} else {
return 0;
}
} finally {
request.close();
}
}
final int numBytesRead;
synchronized (mReadBufferLock) {
int readAmt = Math.min(dest.length, mReadBuffer.length);
numBytesRead = mConnection.bulkTransfer(mReadEndpoint, mReadBuffer, readAmt,
timeoutMillis);
if (numBytesRead < 0) {
// This sucks: we get -1 on timeout, not 0 as preferred.
// We *should* use UsbRequest, except it has a bug/api oversight
// where there is no way to determine the number of bytes read
// in response :\ -- http://b.android.com/28023
if (timeoutMillis == Integer.MAX_VALUE) {
// Hack: Special case "~infinite timeout" as an error.
return -1;
}
return 0;
}
System.arraycopy(mReadBuffer, 0, dest, 0, numBytesRead);
}
return numBytesRead;
}
示例4: read
import android.hardware.usb.UsbRequest; //导入方法依赖的package包/类
@Override
public int read(byte[] dest, int timeoutMillis) throws IOException {
if (mEnableAsyncReads) {
final UsbRequest request = new UsbRequest();
try {
request.initialize(mConnection, mReadEndpoint);
final ByteBuffer buf = ByteBuffer.wrap(dest);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
}
final UsbRequest response = mConnection.requestWait();
if (response == null) {
throw new IOException("Null response");
}
final int nread = buf.position();
if (nread > 0) {
//Log.d(TAG, HexDump.dumpHexString(dest, 0, Math.min(32, dest.length)));
return nread;
} else {
return 0;
}
} finally {
request.close();
}
}
final int numBytesRead;
synchronized (mReadBufferLock) {
int readAmt = Math.min(dest.length, mReadBuffer.length);
numBytesRead = mConnection.bulkTransfer(mReadEndpoint, mReadBuffer, readAmt,
timeoutMillis);
if (numBytesRead < 0) {
// This sucks: we get -1 on timeout, not 0 as preferred.
// We *should* use UsbRequest, except it has a bug/api oversight
// where there is no way to determine the number of bytes read
// in response :\ -- http://b.android.com/28023
if (timeoutMillis == Integer.MAX_VALUE) {
// Hack: Special case "~infinite timeout" as an error.
return -1;
}
return 0;
}
System.arraycopy(mReadBuffer, 0, dest, 0, numBytesRead);
}
return numBytesRead;
}
示例5: read
import android.hardware.usb.UsbRequest; //导入方法依赖的package包/类
@Override
public int read(byte[] dest, int timeoutMillis) throws IOException {
if (mEnableAsyncReads) {
final UsbRequest request = new UsbRequest();
try {
request.initialize(mConnection, mReadEndpoint);
final ByteBuffer buf = ByteBuffer.wrap(dest);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
}
final UsbRequest response = mConnection.requestWait();
if (response == null) {
throw new IOException("Null response");
}
final int nread = buf.position();
if (nread > 0) {
//Log.d(TAG, HexDump.dumpHexString(dest, 0, Math.min(32, dest.length)));
return nread;
} else {
return 0;
}
} finally {
request.close();
}
}
final int numBytesRead;
synchronized (mReadBufferLock) {
int readAmt = Math.min(dest.length, mReadBuffer.length);
numBytesRead = mConnection.bulkTransfer(mReadEndpoint, mReadBuffer, readAmt, timeoutMillis);
if (numBytesRead < 0) {
// This sucks: we get -1 on timeout, not 0 as preferred.
// We *should* use UsbRequest, except it has a bug/api oversight
// where there is no way to determine the number of bytes read
// in response :\ -- http://b.android.com/28023
if (timeoutMillis == Integer.MAX_VALUE) {
// Hack: Special case "~infinite timeout" as an error.
return -1;
}
return 0;
}
System.arraycopy(mReadBuffer, 0, dest, 0, numBytesRead);
}
return numBytesRead;
}
示例6: read
import android.hardware.usb.UsbRequest; //导入方法依赖的package包/类
public int read(byte[] dest, int timeoutMillis, UsbDeviceConnection connection) throws IOException {
if (false) {
final UsbRequest request = new UsbRequest();
try {
request.initialize(connection, null);
final ByteBuffer buf = ByteBuffer.wrap(dest);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
}
final UsbRequest response = connection.requestWait();
if (response == null) {
throw new IOException("Null response");
}
final int nread = buf.position();
if (nread > 0) {
//Log.d(TAG, HexDump.dumpHexString(dest, 0, Math.min(32, dest.length)));
return nread;
} else {
return 0;
}
} finally {
request.close();
}
}
final int numBytesRead;
synchronized (mReadBufferLock) {
int readAmt = Math.min(dest.length, mReadBuffer.length);
numBytesRead = connection.bulkTransfer(null, mReadBuffer, readAmt,
timeoutMillis);
if (numBytesRead < 0) {
// This sucks: we get -1 on timeout, not 0 as preferred.
// We *should* use UsbRequest, except it has a bug/api oversight
// where there is no way to determine the number of bytes read
// in response :\ -- http://b.android.com/28023
if (timeoutMillis == Integer.MAX_VALUE) {
// Hack: Special case "~infinite timeout" as an error.
return -1;
}
return 0;
}
System.arraycopy(mReadBuffer, 0, dest, 0, numBytesRead);
}
return numBytesRead;
}
示例7: read
import android.hardware.usb.UsbRequest; //导入方法依赖的package包/类
@Override
public int read(byte[] dest, int timeoutMillis, UsbDeviceConnection connection) throws IOException {
if (false) {
final UsbRequest request = new UsbRequest();
try {
request.initialize(connection, mReadEndpoint);
final ByteBuffer buf = ByteBuffer.wrap(dest);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
}
final UsbRequest response = connection.requestWait();
if (response == null) {
throw new IOException("Null response");
}
final int nread = buf.position();
if (nread > 0) {
//Log.d(TAG, HexDump.dumpHexString(dest, 0, Math.min(32, dest.length)));
return nread;
} else {
return 0;
}
} finally {
request.close();
}
}
final int numBytesRead;
synchronized (mReadBufferLock) {
int readAmt = Math.min(dest.length, mReadBuffer.length);
numBytesRead = connection.bulkTransfer(mReadEndpoint, mReadBuffer, readAmt,
timeoutMillis);
if (numBytesRead < 0) {
// This sucks: we get -1 on timeout, not 0 as preferred.
// We *should* use UsbRequest, except it has a bug/api oversight
// where there is no way to determine the number of bytes read
// in response :\ -- http://b.android.com/28023
if (timeoutMillis == Integer.MAX_VALUE) {
// Hack: Special case "~infinite timeout" as an error.
return -1;
}
return 0;
}
System.arraycopy(mReadBuffer, 0, dest, 0, numBytesRead);
}
return numBytesRead;
}
示例8: read
import android.hardware.usb.UsbRequest; //导入方法依赖的package包/类
public int read(byte[] dest, int timeoutMillis, UsbDeviceConnection connection) throws IOException {
if (false) {
final UsbRequest request = new UsbRequest();
try {
request.initialize(connection, mReadEndpoint);
final ByteBuffer buf = ByteBuffer.wrap(dest);
if (!request.queue(buf, dest.length)) {
throw new IOException("Error queueing request.");
}
final UsbRequest response = connection.requestWait();
if (response == null) {
throw new IOException("Null response");
}
final int nread = buf.position();
if (nread > 0) {
//Log.d(TAG, HexDump.dumpHexString(dest, 0, Math.min(32, dest.length)));
return nread;
} else {
return 0;
}
} finally {
request.close();
}
}
final int numBytesRead;
synchronized (mReadBufferLock) {
int readAmt = Math.min(dest.length, mReadBuffer.length);
numBytesRead = connection.bulkTransfer(mReadEndpoint, mReadBuffer, readAmt,
timeoutMillis);
if (numBytesRead < 0) {
// This sucks: we get -1 on timeout, not 0 as preferred.
// We *should* use UsbRequest, except it has a bug/api oversight
// where there is no way to determine the number of bytes read
// in response :\ -- http://b.android.com/28023
if (timeoutMillis == Integer.MAX_VALUE) {
// Hack: Special case "~infinite timeout" as an error.
return -1;
}
return 0;
}
System.arraycopy(mReadBuffer, 0, dest, 0, numBytesRead);
}
return numBytesRead;
}
示例9: exchange
import android.hardware.usb.UsbRequest; //导入方法依赖的package包/类
public byte[] exchange(byte tag, byte[] command) throws IOException {
ByteArrayOutputStream response = new ByteArrayOutputStream();
byte[] responseData = null;
int offset = 0;
int responseSize;
if (debug) {
Log.d(LOG_TAG, "=> " + Dump.dump(command));
}
command = helper.wrapCommandAPDU(tag, command, HID_BUFFER_SIZE);
UsbRequest requestWrite = new UsbRequest();
if (!requestWrite.initialize(connection, out)) {
throw new IOException();
}
while (offset != command.length) {
int blockSize = (command.length - offset > HID_BUFFER_SIZE ? HID_BUFFER_SIZE : command.length - offset);
System.arraycopy(command, offset, transferBuffer, 0, blockSize);
if (debug) {
Log.d(LOG_TAG, "wire => " + Dump.dump(transferBuffer));
}
if (!requestWrite.queue(ByteBuffer.wrap(transferBuffer), HID_BUFFER_SIZE)) {
requestWrite.close();
throw new IOException();
}
connection.requestWait();
offset += blockSize;
}
ByteBuffer responseBuffer = ByteBuffer.allocate(HID_BUFFER_SIZE);
UsbRequest requestRead = new UsbRequest();
if (!requestRead.initialize(connection, in)) {
requestRead.close();
requestWrite.close();
throw new IOException();
}
while ((responseData = helper.unwrapResponseAPDU(tag, response.toByteArray(), HID_BUFFER_SIZE)) == null) {
responseBuffer.clear();
if (!requestRead.queue(responseBuffer, HID_BUFFER_SIZE)) {
requestRead.close();
requestWrite.close();
throw new IOException();
}
connection.requestWait();
responseBuffer.rewind();
responseBuffer.get(transferBuffer, 0, HID_BUFFER_SIZE);
if (debug) {
Log.d(LOG_TAG, "wire <= " + Dump.dump(transferBuffer));
}
response.write(transferBuffer, 0, HID_BUFFER_SIZE);
}
if (debug) {
Log.d(LOG_TAG, "<= " + Dump.dump(responseData));
}
requestWrite.close();
requestRead.close();
return responseData;
}