Auto-configuration (auto-attachment) of USB and PCI comedi devices all
goes through `comedi_auto_config_helper()`. That is a good place to set
the comedi device's `hw_dev` pointer to the hardware `struct device` via
a call to `comedi_set_hw_dev(comedi_device, hardware_device)` as it may
obviate the need for the low-level comedi driver to make this call.
Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx>
---
drivers/staging/comedi/drivers.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index 1db6bfd..09e1daf 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -860,6 +860,7 @@ comedi_auto_config_helper(struct device *hardware_device,
else if (!try_module_get(driver->module))
ret = -EIO;
else {
+ comedi_set_hw_dev(comedi_dev, hardware_device);
/* set comedi_dev->driver here for attach wrapper */
comedi_dev->driver = driver;
ret = (*attach_wrapper)(comedi_dev, context);
--
1.7.12
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