Try using lseek before reading the data after the poll.
EX.
if (fdset[0].revents POLLPRI) {
lseek(fdset[0].fd, 0, SEEK_SET);
len = read(fdset[0].fd, buf, MAX_BUF);
.
.
}
See if this helps.
On Wed, Feb 18, 2015 at 11:23:42AM -0600, Benoit Parrot wrote:
Gentle ping.
Is there any chance this will make it in 3.21?
Benoit
Is there a reason that the pin has to be hogged?
Couldn't the pin be released after configuration for eventual use in the
userspace?
Parrot, Benoit
On Fri, Feb 20, 2015 at 2:33 PM, Dmitry Torokhov
dmitry.torok...@gmail.com wrote:
I should have commented at that time, but let's do it now: I agree
with the idea, but this leaves the door open to confusing situations
in case gpiolib was unintentionally disabled. Could you also add a
note in
On Fri, Feb 20, 2015 at 9:30 AM, Dmitry Torokhov
dmitry.torok...@gmail.com wrote:
Given the intent behind gpiod_get_optional() and friends it does not make
sense to return -ENOSYS when GPIOLIB is disabled: the driver is expected to
work just fine without gpio so let's behave as if gpio was not
On Fri, Feb 20, 2015 at 01:59:43PM +0900, Alexandre Courbot wrote:
On Fri, Feb 20, 2015 at 9:30 AM, Dmitry Torokhov
dmitry.torok...@gmail.com wrote:
Given the intent behind gpiod_get_optional() and friends it does not make
sense to return -ENOSYS when GPIOLIB is disabled: the driver is
Given the intent behind gpiod_get_optional() and friends it does not make
sense to return -ENOSYS when GPIOLIB is disabled: the driver is expected to
work just fine without gpio so let's behave as if gpio was not found.
Otherwise we have to special-case -ENOSYS in drivers.
Signed-off-by: Dmitry
Hi Rob,
2015-02-15 23:42 GMT+01:00 Rob Herring robherri...@gmail.com:
On Fri, Feb 13, 2015 at 2:42 AM, Maxime Coquelin
mcoquelin.st...@gmail.com wrote:
Hi Geert,
2015-02-12 21:34 GMT+01:00 Geert Uytterhoeven ge...@linux-m68k.org:
On Thu, Feb 12, 2015 at 6:45 PM, Maxime Coquelin
On Thu, Feb 19, 2015 at 10:13 AM, Maxime Coquelin
mcoquelin.st...@gmail.com wrote:
Hi Rob,
2015-02-15 23:42 GMT+01:00 Rob Herring robherri...@gmail.com:
On Fri, Feb 13, 2015 at 2:42 AM, Maxime Coquelin
mcoquelin.st...@gmail.com wrote:
Hi Geert,
2015-02-12 21:34 GMT+01:00 Geert Uytterhoeven
On Thu, Feb 19, 2015 at 9:53 AM, folkert folk...@vanheusden.com wrote:
I also think that this interface is cumbersome. I did not measure it(!)
but I think adding this open/seek + read construction may add all kinds
of overhead. Especially since my use-case requires the lowest latency
