I am developing a parallel port peripheral that supports the 1284.3
daisy chaining standard. I thought I could use the user space driver
(ppdev) to do some quick development, but I don't seem to be able to
select the dasiy chained device I want to talk to on the parport0. (Ie
there is no IOCTL call from ppdev to do "parport_daisy_select"). Am I
not getting something or is there a way to select the daisy device you
want? I could write a kernel module but I would rather just have user
space communication for now.
My device shows up in /proc/sys/dev/parport/parport0/autoprobe0 as the
first daisy chain device.
If I disable daisy-chaining on my peripheral and have it act as a legacy
device on /dev/parport0 I can do everything ok (ie use ppdev IOCTL to
negotiate modes, etc)
I am using kernel 2.3.51 and the parport code that is last changed on
If you have any hints or need more info, please ask!
-- Derek Bouius | American Biometric Company | Tel:(613)736-5100x281 email@example.com | 3429 Hawthorne Rd,Ottawa,ON | Fax:(613)736-1742
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