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drivers/bch: add poll support

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This commit is contained in:
Jussi Kivilinna 2017-09-01 07:54:49 -06:00 committed by Gregory Nutt
parent 8042c96f09
commit 03a3aca774
1 changed files with 27 additions and 1 deletions
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28
drivers/bch/bchdev_driver.c
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@ -48,6 +48,7 @@
#include <fcntl.h>
#include <sched.h>
#include <errno.h>
#include <poll.h>
#include <assert.h>
#include <debug.h>
@ -74,6 +75,10 @@ static ssize_t bch_write(FAR struct file *filep, FAR const char *buffer,
size_t buflen);
static int bch_ioctl(FAR struct file *filep, int cmd,
unsigned long arg);
#ifndef CONFIG_DISABLE_POLL
static int bch_poll(FAR struct file *filep, FAR struct pollfd *fds,
bool setup);
#endif
#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
static int bch_unlink(FAR struct inode *inode);
#endif
@ -91,7 +96,7 @@ const struct file_operations bch_fops =
bch_seek, /* seek */
bch_ioctl /* ioctl */
#ifndef CONFIG_DISABLE_POLL
, 0 /* poll */
, bch_poll /* poll */
#endif
#ifndef CONFIG_DISABLE_PSEUDOFS_OPERATIONS
, bch_unlink /* unlink */
@ -102,6 +107,27 @@ const struct file_operations bch_fops =
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: bch_poll
****************************************************************************/
#ifndef CONFIG_DISABLE_POLL
static int bch_poll(FAR struct file *filep, FAR struct pollfd *fds,
bool setup)
{
if (setup)
{
fds->revents |= (fds->events & (POLLIN | POLLOUT));
if (fds->revents != 0)
{
sem_post(fds->sem);
}
}
return OK;
}
#endif
/****************************************************************************
* Name: bch_open
*