iio: dac: adi-axi-dac: define supported iio-backend capabilities

Backends support the buffer/enable capabilities so advertise it
while registering in case a frontend makes checks for it.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Tomas Melin 2026-02-10 10:53:36 +00:00 • committed by Jonathan Cameron
commit 9db3e8ddca