We have the following drivers still using vb1: PCI: saa7146, bt8xx, cx18 USB: zr364xx, tm6000 platform: ti/davinci/vpfe_capture, nxp/fsl-viu staging: atomisp And these drivers rolls their own streaming I/O implementation: pci: meye usb: cpia2 staging: stkwebcam (deprecated, to be removed by the end of the year) I think we should bite the bullet and move all of these drivers to staging, mark them deprecated and delete them some time next year if nobody will convert them to vb2. That includes atomisp: is that going anywhere? Unless someone does the hard work of converting it to vb2 I think it should be removed as well. The two drivers most likely to still be in use somewhere are bt8xx and cx18. If it turns out that we can't remove them (yet), then I can probably justify the time to convert cx18 to vb2 myself. And for bt8xx I would probably be willing to convert it to vb2 as well, provided we can strip the overlay support from the driver (since, if memory serves, vb2 doesn't support that) and convert it to vb2. It's a big job, though. One other thing we can do is to deprecate/remove video capture overlay support (in the sense of video capture hardware writing directly to a framebuffer). It's supported by saa7146, bttv, saa7134 and fsl-viu. If we remove vb1 drivers, then that would leave only saa7134 that still supports it. Removing the API will simplify things. Regards, Hans
