hello i am trying to record from a PCI device using different channel widths For eg: If i am trying to record on 13 channels i.e 13 * 4 = 52 byte recoding and if IPortWavePciStream::GetMapping() returns a buffer size which is a multiple of 52 then alignment is easy...more importantly improving the performance of recording. At present i get a page_size buffer which i fill up and if the last frame (52 bytes) doesnt fit the current buffer. i break it up and fill the remaining data in the next buffer. thank you sudheer Frank Berreth wrote: What do you mean with "manipulate the size"? Do you have HW restrictions that make it impossible to map PAGE_SIZE buffers? -----Original Message----- From: most project [mailto:most_prj@xxxxxxxxx]=20 Sent: Sunday, September 22, 2002 10:42 PM To: wdmaudiodev@xxxxxxxxxxxxx Subject: [wdmaudiodev] IPortWavePciStream::GetMapping() byte count problem hi all i am calling IPortWavePciStream::GetMapping( ) and i get a value of 4096 as the size of the mapping (out pulong bytecount). But my requirement is that i should be able to manipulate the size returned to me..Can this be done..if so..please let me know how. thank you sudheer =20 =20 =20 --------------------------------- Do You Yahoo!? Yahoo! Finance - Get real-time stock quotes ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: = mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=3Dsubscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=3Dunsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/ ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/ --------------------------------- Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.de/