Hello, I had asked this question a few days ago in zd1211 mailing list and did not get an answer and I think maybe this question is more suitable to this forum. So please don't regard this as a cross posting.
zd1211 is a USB wireless dongle which has a linux driver. see: http://zd1211.ath.cx I hope somebody can explain: If you look at zd_usb_enable_int() in zd_usb.c, the USB transfer_buffer is currently created by a call to kmalloc; Any idea what is the advantage of using a DMA buffer instead? Are there any disadvantages for using DMA ? And BTW, there is a comment there saying: /* TODO: make it a DMA buffer */ Regards, Xu __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ------------------------------------------------------- All the advantages of Linux Managed Hosting--Without the Cost and Risk! Fully trained technicians. The highest number of Red Hat certifications in the hosting industry. Fanatical Support. Click to learn more http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
