Re: How to avoid re-entering the time on changing the sim in nokia 6600? - Hardware & Devices Discussion Boards

How to identify a usb device which connected to a fixed port?

Clark Nu China23-Jul-07 14:27

23-Jul-07 14:27

The requirement is,
now we have several usb controllers, ... suppose as 4, now we want test different types of devices on them, certainly I can get the "WM_DEVICECHANGE" message or something else to handle device remove/add events, then my problem is, how to know the which usb controller and port the newly added/removed device conntected to? and another question is though I can enum all the devices via WMI, I don't konw how to get a exclusive id for each, currently I only use usb controller and general usb devices like storage and camera. can tell?
Thanks

Clark Nu

How to avoid re-entering the time on changing the sim in nokia 6600? [modified]

Mushtaque Nizamani22-Jul-07 19:35

Mushtaque Nizamani

22-Jul-07 19:35

Hi CPians,
When ever i change the sim in my nokia 6600, it almost always ask me to re-enter the time(as it has lost the previous time), is there any way/software to resolve that, so that it should not ask to re-enter the time.

-- modified at 10:15 Monday 23rd July, 2007

Best Regards,
Mushq

Mushtaque Ahmed Nizamani
Software Engineer
Ultimus Pakistan

"English is my second language, so please don't mind if i do some grammatical or spelling mistakes in my messages."

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

Sylvester george22-Jul-07 19:52

Sylvester george

22-Jul-07 19:52

I dont think so you are able to keep the time in mobile's memory. B'cos when we remove the battery the clock will reset. But some mobile has option to get the time from the service provider. Please check it out

Regards,
Sylvester G

If we don't succeed, we run the risk of failure

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

Mushtaque Nizamani22-Jul-07 20:36

Mushtaque Nizamani

22-Jul-07 20:36

Sylvester george wrote:
I dont think so you are able to keep the time in mobile's memory.

Thanks for reply, but in some mobiles(Sony Ericsson etc) save the time and some one doesn't need to reset the time when he/she changes the sim.

Best Regards,
Mushq

Mushtaque Ahmed Nizamani
Software Engineer
Ultimus Pakistan

"English is my second language, so please don't mind if i do some grammatical or spelling mistakes in my messages."

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

leppie22-Jul-07 21:05

leppie

22-Jul-07 21:05

Maybe you should get a Sony Ericsson then.

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

Shouvik Das22-Jul-07 21:24

Shouvik Das

22-Jul-07 21:24

We do have a non volatile card based time backups. My cell Nokia 6670 has never asked if u replace the SIM/battery for some 15 mins. If you took longer than that it will ask. As well if you are replacing the memory card; even within one minute it will ask for the new time.

We ofcourse do have time updating services from the Service Provider but most of the time it lags beyond our time Smile | :)

There are only two kinds of people who are really fascinating-people who know absolutely everything, and people who know absolutely nothing.
Oscar Wilde (1854-1900)
Regards...
Shouvik

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

Luka Grabarevic22-Jul-07 21:29

Luka Grabarevic

22-Jul-07 21:29

Hi Mushq,

how old is your Nokia 6600 phone?
I had same the same issue on 3 nokia phones i owned.
I can remeber that at the beginning it worked fine when I changed
the sim in my phone. I had to remove the storage battery but it had still power supply
to keep the time in RAM.
But within a year it stopped working. Maybe a little internal battery or something ran out of power.

Had this problem on my old Nokia 3330, N-Gage an now on my N70.

One hint from me.
Switching the sim within 3 seconds worked on my N-Gage, no re-enter of the time was needed. Big Grin | :-D

Don't know if it still works.

regards pdluke

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

Mushtaque Nizamani22-Jul-07 21:47

Mushtaque Nizamani

22-Jul-07 21:47

pdluke wrote:
how old is your Nokia 6600 phone?

It is about 1 and half year.

pdluke wrote:
I can remeber that at the beginning it worked fine

For me too In begining it was working fine.

pdluke wrote:
Switching the sim within 3 seconds worked on my N-Gage, no re-enter of the time was needed.

Thanks for suggestion i will try to do that. Smile | :)

Best Regards,
Mushq

Mushtaque Ahmed Nizamani
Software Engineer
Ultimus Pakistan

"English is my second language, so please don't mind if i do some grammatical or spelling mistakes in my messages."

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

#realJSOP23-Jul-07 1:29

#realJSOP

23-Jul-07 1:29

The obvious solution is to buy another phone. Just in case it wasn't immediately obvious, do NOT buy another phone just like the one you have.

This message brought to you by Obvious Technical Solutions, LLC. At OBT, we live the phrase "If it hurts when you do that, then don't do that."

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

ed^nrgc23-Jul-07 1:59

ed^nrgc

23-Jul-07 1:59

How many times do you change the sim? jeez. OMG | :OMG:

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

brianwelsch23-Jul-07 2:24

brianwelsch

23-Jul-07 2:24

Exactly how difficult is it to just enter in the current time and move on with your day?

Quick to judge, quick to anger, slow to understand.
Ignorance and prejudice and fear walk hand in hand.

-- Neil Peart

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

Aryo Handono23-Jul-07 3:59

Aryo Handono

23-Jul-07 3:59

Well,

It seems you have same problems with me. I install some application "TimeSync" that always synchronize date and time with some server in internet every time i turn on my cellphone. It cost you a penny because you must using GPRS when synchronizing.

The bad side is,TimeSync runs on Windows Mobil cellphone, but i think there's similar application that run on symbian.

"Courage choose who will follow, Fate choose who will lead" - Lord Gunner, Septerra Core
"Press any key to continue, where's the ANY key ?" - Homer Simpsons
Drinking gives me amazing powers of insight. I can solve all the worlds problems when drunk, but can never remember the solutions in the morning. - Michael P Butler to Paul Watson on 12/08/03

Re: How to avoid re-entering the time on changing the sim in nokia 6600?

eknoyon23-Jul-07 23:37

eknoyon

23-Jul-07 23:37

This exactly depends on how they designed the hardware. In some case, the volatile information is stored in something like CMOS as in the case of PC. In other cases, the information is not considered crucial and handled over to user input, as it happens in your handset.

This all is stored in HAL (Hardware Abstraction Layer) or beyond. And you have virtually no mean to reach there, especially in case of low profile controller devices like handsets. Java and other languages stand on builtin OS. They can't reach therein.

________________________________________
To Learn is to Change

All Harddisk is PNPDevice?

god4k21-Jul-07 10:42

god4k

21-Jul-07 10:42

Is all Harddisk PnpDevice?

Thank You.

Re: All Harddisk is PNPDevice?

S Keller22-Jul-07 10:46

S Keller

22-Jul-07 10:46

:-> It's supposed to be, (PnP means only that the hard disk driver uses the PnP driver architecture, almost every driver uses the PnP driver architecture). Laugh | :laugh:

Slow ReadFile on DVD Drive

rctodd20-Jul-07 4:58

rctodd

20-Jul-07 4:58

Hello -

I'm working on a program that scans files on a DVD created by our product (to calculate a CRC).

When using Windows Explorer to copy from the DVD (USB connection) to my C: drive, it takes about a minutes to copy a 1GB file.

My program, however, takes close to ten minutes to read the file (doing nothing else). The following snippet demonstrates the problem:

#define HEAP_SIZE  1000000  // 1,000,000 bytes
static BYTE g_buffer[HEAP_SIZE];
hFile = CreateFile( strThisFile, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);

while ( ReadFile( hFile, g_buffer, HEAP_SIZE, &nBytesRead, NULL))
{
   ++nNumberOfReads;

   if ( nBytesRead == 0)
   {
      break;
   }
}

Same results are observed when g_buffer is created using HeapAlloc and with varying HEAP_SIZE values.

Any hints as to why I'm seeing this are appreciated!

Thanks.

Re: Slow ReadFile on DVD Drive

Luc Pattyn20-Jul-07 5:15

Luc Pattyn

20-Jul-07 5:15

Why do you make it hard on the system ?
- files get allocated by sectors and clusters on disk, these are all quantities that equal a power of 2. So a power of 10 for your HEAP_SIZE value is not so good.
- files get cached somehow (the file cache in RAM, and the data cache L1/L2/L3 inside or
close to the CPU chip); the hardware cache has limited size. So it probably is better to
reduce HEAP_SIZE.

I would suggest you try HEAP_SIZE values of 2^15 up to 2^18 (that's NOT C syntax !)
I expect you can get around 50 to 100 MB/s on an average system

And when organized well (two threads, ping-pong), CRC should be free.

Good luck.

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

Re: Slow ReadFile on DVD Drive

rctodd20-Jul-07 6:04

rctodd

20-Jul-07 6:04

The notion that the block size should be consistent with cluster sizes makes a lot of sense.

However, I tried several sizes (65536, 262140, 1MB, 4MB) all with the same (slow) results using the USB-connected DVD drive (advertised as a "16X").

I did notice something odd, though. Currently using a 4MB block size, I put a breakpoint in my loop and found that if I stepped the program (one or two ReadFile calls per second) that the drive motor sped up.

I added a Sleep(1000) in the loop and found that my read rate went from about 1MB/sec to 4MB/sec (along with increase in motor speed). It's as if blocking on ReadFile is slowing things down. So I may experiment with overlapped IO (new to me as I spend most of my time working on embedded systems stuff).

Thanks.

Re: Slow ReadFile on DVD Drive

Luc Pattyn20-Jul-07 6:31

Luc Pattyn

20-Jul-07 6:31

Hi,

I missed the "USB connection" in your first post. That will reduce the performance
you might hope to get to less than 40 MB/s. You should be able to reach whatever speed
Windows Explorer gives you when copying a file from DVD to HDD.

Have you tried using a FileStream ?
You could loop reading say 4KB from a FileStream and let Windows worry about the
opmization stuff, it is supposed to make the best of it...

But then, the motor speed observations are surprising. I am not familiar with DVD on USB;
I expect an optical drive to contain a cache capable of holding a couple of tracks, and to preread one track; so if you can transfer a track as fast as the disk rotates I dont
expect particular sounds...

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

Re: Slow ReadFile on DVD Drive

rctodd20-Jul-07 6:58

rctodd

20-Jul-07 6:58

Haven't tried FileStream yet.

I did stumble on an interesting item: I changed my call to CreateFile thus:

hFile = CreateFile( strThisFile, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_NO_BUFFERING, NULL);

The FILE_FLAG_NO_BUFFERING flag had a dramatic affect - read speeds in the 18 MB/sec range (block size also makes some difference here).

Thanks for the suggestions - they're what got me thinking.

Regards.

USB Port detection and vendor id of usb attached device

Sonani Prakash20-Jul-07 3:17

Sonani Prakash

20-Jul-07 3:17

Hi

CAn any body tell me how to detect the vendor id information from the usb device and
how can i know if drivers are installed for this attched usb device.

Is there any registry entry to be looked up or any device opening and messaging api need to look for.
Anybody has idea Please let me know?

sonani prakash

Re: USB Port detection and vendor id of usb attached device

S Keller22-Jul-07 10:53

S Keller

22-Jul-07 10:53

Read in the MSDN about SetupAPI.txt (it is located in the Windows directory). You can set in the registry a flag so you would get a lot of information written in to SetupAPI.txt Laugh | :laugh:

parallel processing!!!!!!

akhshay gandhi19-Jul-07 3:36

akhshay gandhi

19-Jul-07 3:36

hiii m akhshay gandhi....
i m doin engg in information systems
can smbdy help me to connect two computers and process them together i.e parallel processing i have two PCs bbtt hw to do this is strange to me if ne1 can suggest me what to study and hw to do it will be great!!!!!

Re: parallel processing!!!!!!

Sebastian Schneider19-Jul-07 4:30

Sebastian Schneider

19-Jul-07 4:30

kthxbye

Cheers,
Sebastian

--
"If it was two men, the non-driver would have challenged the driver to simply crash through the gates. The macho image thing, you know." - Marc Clifton

Re: parallel processing!!!!!!

akhshay gandhi19-Jul-07 20:39

akhshay gandhi

19-Jul-07 20:39

hii Sebastian...
bro i don get ur answer .. can u plz explain...

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