When the COMEDI_BUFINFO ioctl is used on a subdevice without asynchronous streaming command support, set 'bytes_read = 0' and 'bytes_written = 0' in the buffer info returned back to the user. Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx> --- drivers/staging/comedi/comedi_fops.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 9a26428..d43d829 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -584,6 +584,8 @@ static int do_bufinfo_ioctl(struct comedi_device *dev, bi.buf_read_ptr = 0; bi.buf_write_count = 0; bi.buf_read_count = 0; + bi.bytes_read = 0; + bi.bytes_written = 0; goto copyback; } -- 1.7.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
