Hello everyone, I'm preparing to finally add support for the raw sensor video stream to my driver for the SUR40 touchscreen. However, after an extensive amount of Googling, I'm still not clear on the relationship between DMA transfers, the USB core and the videobuf2 framework. Specifically, I'd like to know: - Can I always use DMA on the USB side (for bulk transfers), or does this in any way require support from the USB device's hardware? (I'm guessing no, but a definite answer would be great.) - Regardless of the USB side of things, can I use the videobuf2 framework without _having_ to use DMA? That way, I could get a basic driver running without DMA and switch later when it's convenient and/or the speedup is justified. Thanks & best regards, Florian -- SENT FROM MY DEC VT50 TERMINAL
Attachment:
signature.asc
Description: OpenPGP digital signature
