This is a note to let you know that I've just added the patch titled iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer. to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: iio-adc-ti_am335x_adc-fix-buffered-mode-by-identifying-as-software-buffer.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 9d0be85d4e2cfa2519ae16efe7ff4a7150c43c0b Mon Sep 17 00:00:00 2001 From: Jonathan Cameron <jic23@xxxxxxxxxx> Date: Fri, 1 Jan 2016 18:05:34 +0000 Subject: iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer. From: Jonathan Cameron <jic23@xxxxxxxxxx> commit 9d0be85d4e2cfa2519ae16efe7ff4a7150c43c0b upstream. Whilst this part has a hardware buffer, the identifcation that IIO cares about is the userspace facing end. It this case we push individual elements from the hardware fifo into the software interface (specifically a kfifo) rather than providing direct reads through to a hardware buffer (as we still do in the sca3000 for example). Technically the original specification as a hardware buffer could be considered wrong, but it didn't matter until the patch listed below. Result is that any attempt to enable the buffer will return -EINVAL Fixes: 225d59adf1c8 ("iio: Specify supported modes for buffers") Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/iio/adc/ti_am335x_adc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -289,7 +289,7 @@ static int tiadc_iio_buffered_hardware_s goto error_kfifo_free; indio_dev->setup_ops = setup_ops; - indio_dev->modes |= INDIO_BUFFER_HARDWARE; + indio_dev->modes |= INDIO_BUFFER_SOFTWARE; return 0; Patches currently in stable-queue which might be from jic23@xxxxxxxxxx are queue-4.4/iio-adis_buffer-fix-out-of-bounds-memory-access.patch queue-4.4/iio-add-iio_trigger-dependency-to-stk8ba50.patch queue-4.4/iio-add-has_iomem-dependency-to-vf610_adc.patch queue-4.4/iio-light-acpi-als-report-data-as-processed.patch queue-4.4/iio-dac-mcp4725-set-iio-name-property-in-sysfs.patch queue-4.4/iio-pressure-mpl115-fix-temperature-offset-sign.patch queue-4.4/iio-adc-ti_am335x_adc-fix-buffered-mode-by-identifying-as-software-buffer.patch queue-4.4/iio-light-use-a-signed-return-type-for-ltr501_match_samp_freq.patch queue-4.4/iio-inkern-fix-a-null-dereference-on-error.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html