On 4/24/07, Alan Stern <[EMAIL PROTECTED]> wrote: > On Mon, 23 Apr 2007, Wael Adel wrote: > > > > > bu when the gadget really sends a word like "hello host" for example, > the > > > host > > > > really receives it but still printing the phrase of insize is 64 i.e > the > > > output > > > > is as follows: > > > > > > > > insize is 64 > > > > hello host > > > > insize is 64 > > > > insize is 64 and it prints this phrase forever > > > > so why it just receives 64B while i was really sending 2KB buffer? > > > > > > You are contradicting yourself. Above you said the gadget sends the > words > > > "hello host", which is 10 bytes, but now you say the gadget sends a > > > 2048-byte buffer. Which is it? > > > > > > on the gadget side i have a buffer of 2KB and i just fill 10 bytes of > > it by "hello host" but i send all the buffer i.e i send 2KB. so can u > > tell me now why the phrase of insize is 64 is repaeted forever while i > > set the timeout to zero.i think it shall never appear as long as the > > gadget is sending nothing and the read is blocking and the timeout is > > zero? > > This response may be a little late, but here it is anyway. > > So the gadget isn't just sending "hello host" -- it's really sending a > 2048-byte buffer. On the host side, you have a read request for 64 bytes, > which returns the first 64 bytes sent by the gadget. The next read > request returns the next 64 bytes sent by the gadget. And so on... > > After 32 repetitions (not forever!), all 2048 bytes will have been read > and then the messages will stop.
ah, i see, so suppose that the gadget sends 2048 buffer full of data , so what should i do to force the host to receive 2048 B only at once , not at 32 times? thanks > Alan Stern > > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
