Add support for WDIOC_GETPRETIMEOUT ioctl so that user applications can determine when the NMI should arrive.
Signed-off-by: Jerry Hoemann <[email protected]> --- drivers/watchdog/hpwdt.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 67fbe35..ef54b03 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -50,6 +50,7 @@ static bool nowayout = WATCHDOG_NOWAYOUT; static char expect_release; static unsigned long hpwdt_is_open; +static const int pretimeout = 9; static void __iomem *pci_mem_addr; /* the PCI-memory address */ static unsigned long __iomem *hpwdt_timer_reg; @@ -622,6 +623,12 @@ static long hpwdt_ioctl(struct file *file, unsigned int cmd, } break; + case WDIOC_GETPRETIMEOUT: + ret = copy_to_user(argp, &pretimeout, sizeof(pretimeout)); + if (ret) + ret = -EFAULT; + break; + case WDIOC_SETTIMEOUT: ret = get_user(new_margin, p); if (ret) -- 1.8.3.1
