Re: [PATCH] New: Omnikey CardMan 4040 PCMCIA Driver

[Harald Welte]

Hi Nish, 

thanks for your comments.

On Sat, Sep 03, 2005 at 03:13:43PM -0700, Nish Aravamudan wrote:
> On 9/3/05, Chase Venters <chase.venters@xxxxxxxxxxxx> wrote:
> > > Below you can find a driver for the Omnikey CardMan 4040 PCMCIA
> > > Smartcard Reader.
> > 
> > #define CCID_DRIVER_BULK_DEFAULT_TIMEOUT        (150*HZ)
> 
> These are all fine. Although I am a bit suspicious of 150 second
> timeouts; but if that is the hardware...

That's a definition from the original vendor-supplied driver.
Unfortunately there's no hardware documentation, so I can't verify it.
But generally speaking, serial smart cards can really be slow, so I
think it could make sense.

> > /* how often to poll for fifo status change */
> > #define POLL_PERIOD                             (HZ/100)
> 
> This needs to be msecs_to_jiffies(10), please.

thanks, changed in my local tree now.

> Of bigger concern to me is the use of the sleep_on() family of
> functions, all of which are deprecated.

Ok, I'm working on replacing the respective code with
wait_event_interruptible_timeout().

-- 
- Harald Welte <laforge@xxxxxxxxxxxx>          	        http://gnumonks.org/
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