On 10.04.23 12:44, Ye, Xiang wrote:
Hi,
do we really want each driver to have its own attribute for that?
It seems to me that that should be unified.
Three ABI entries are added in this patch: ljca_version, ljca_trace_level,
and ljca_enable_dfu. The first two items are specified for LJCA device and
I think they can be kept in sysfs-bus-usb-devices-ljca.
But for ljca_enable_dfu, I didn't see a unified DFU entry in sys-bus-usb.
I am not sure whether other USB devices have similar DFU mode or not.
Any suggestions?
What exactly does this attribute do?
Is it in addition to the normal DFU_DETACH + reset sequence, is it
needed for DFU_DETACH to work, does it enable the
DFU class interface descriptor?
A point of DFU is rather that the capability should be announced
via descriptors. The answer would depend on what exactly this
attribute does.
Regards
Oliver
