On Thu, Aug 18, 2016 at 3:14 AM, Rob Herring <r...@kernel.org> wrote:
> Currently, devices attached via a UART are not well supported in the > kernel. The problem is the device support is done in tty line disciplines, > various platform drivers to handle some sideband, and in userspace with > utilities such as hciattach. Freaking *awesome* Rob, this really really needs to happen. I'm very happy that you're driving this. > This is functional with minimal testing using the loopback driver and > pl011 (w/o DMA) UART under QEMU (modified to add a DT node for the slave > device). It still needs lots of work and polish. I have Bluetooth (HCI) over UART on the Nomadik and Ux500, both with DMA support for the PL011 too. So I hope to be able to utilize this. (The HCI transport is then used for GPS, FM radio and whatnot but that is another issue.) Yours, Linus Walleij
