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I've found that the interrupts aren't enabled since nothing updates them after btn_poll() marks the file descriptor structure as being polling. I've managed to make it work with this change.

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Jan Pobrislo
2017-07-04 14:43:19 -06:00
committed by Gregory Nutt
parent f07420dedf
commit 7999822189
1 changed files with 2 additions and 1 deletions
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drivers/input/button_upper.c
+2 -1
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@@ -769,7 +769,7 @@ static int btn_poll(FAR struct file *filep, FAR struct pollfd *fds,
if (i >= CONFIG_BUTTONS_NPOLLWAITERS)
{
ierr("ERROR: Too man poll waiters\n");
ierr("ERROR: Too many poll waiters\n");
fds->priv = NULL;
ret = -EBUSY;
goto errout_with_dusem;
@@ -797,6 +797,7 @@ static int btn_poll(FAR struct file *filep, FAR struct pollfd *fds,
}
errout_with_dusem:
btn_enable(priv);
btn_givesem(&priv->bu_exclsem);
return ret;
}