use nanosleep() instead of usleep()

POSIX.1-2001 declares usleep() function obsolete and POSIX.1-2008
removes it.

[Kay Sievers]
  - include time.h
  - use const for timespec
  - scsi_id: drop rand() in retry loop
  - modem-probe: rename msuspend() to msleep()

2 files changed, 175 insertions, 164 deletions

diff --git a/extras/modem-modeswitch/ma8280p_us.c b/extras/modem-modeswitch/ma8280p_us.c
index 13d11160e1..3cf9eb9eb2 100644
--- a/extras/modem-modeswitch/ma8280p_us.c
+++ b/extras/modem-modeswitch/ma8280p_us.c
@@ -87,11 +87,19 @@
 #include <assert.h>
 #include <signal.h>
 #include <ctype.h>
+#include <time.h>
 #include <usb.h>
 
 #include "utils.h"
 #include "ma8280p_us.h"
 
+static void msleep(long msec)
+{
+	struct timespec duration = { 0, msec * 1000 * 1000 };
+
+	nanosleep(&duration, NULL);
+}
+
 int ma8280p_switch (struct usb_dev_handle *devh, struct usb_device *dev)
 {
 	int ret = 1;
@@ -104,11 +112,11 @@ int ma8280p_switch (struct usb_dev_handle *devh, struct usb_device *dev)
 	}
 
 	ret = usb_get_descriptor(devh, 0x0000001, 0x0000000, buf, 0x0000012);
-	usleep(6*1000);
+	msleep(6);
 	ret = usb_get_descriptor(devh, 0x0000001, 0x0000000, buf, 0x0000012);
-	usleep(6*1000);
+	msleep(6);
 	ret = usb_get_descriptor(devh, 0x0000002, 0x0000000, buf, 0x0000400);
-	usleep(10*1000);
+	msleep(10);
 	ret = usb_release_interface(devh, 0);
 	if (ret != 0) 
 		debug ("%s: failed to release interface before set_configuration: %d", dev->filename, ret);
@@ -117,335 +125,335 @@ int ma8280p_switch (struct usb_dev_handle *devh, struct usb_device *dev)
 	if (ret != 0) 
 		debug ("%s: claim after set_configuration failed with error %d", dev->filename, ret);
 	//ret = usb_set_altinterface(devh, 0);
-	//usleep(33*1000);
+	//msleep(33);
 	ret = usb_control_msg(devh, USB_TYPE_CLASS + USB_RECIP_INTERFACE + USB_ENDPOINT_IN, 0x0000001, 0x0000300, 0x0000000, buf, 0x0000008, 1000);
-	usleep(5*1000);
+	msleep(5);
 	memcpy(buf, "\xb0\x04\x00\x00\x02\x90\x26\x86", 0x0000008);
 	ret = usb_control_msg(devh, USB_TYPE_CLASS + USB_RECIP_INTERFACE, 0x0000009, 0x0000300, 0x0000000, buf, 0x0000008, 1000);
-	usleep(4*1000);
+	msleep(4);
 	memcpy(buf, "\xb0\x04\x00\x00\x02\x90\x26\x86", 0x0000008);
 	ret = usb_control_msg(devh, USB_TYPE_CLASS + USB_RECIP_INTERFACE, 0x0000009, 0x0000300, 0x0000000, buf, 0x0000008, 1000);
-	usleep(4*1000);
+	msleep(4);
 
-	usleep(4*1000);
+	msleep(4);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(6*1000);
+	msleep(6);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(1*1000);
+	msleep(1);
 	//URB_FUNCTION_GET_STATUS_FROM_ENDPOINT skipped
-	usleep(4*1000);
+	msleep(4);
 	memcpy(buf, "\x37\x01\xfe\xdb\xc1\x33\x1f\x83", 0x0000008);
 	ret = usb_interrupt_write(devh, 0x00000002, buf, 0x0000008, 1000);
-	usleep(3*1000);
+	msleep(3);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(1*1000);
+	msleep(1);
 	memcpy(buf, "\x37\x0e\xb5\x9d\x3b\x8a\x91\x51", 0x0000008);
 	ret = usb_interrupt_write(devh, 0x00000002, buf, 0x0000008, 1000);
-	usleep(7*1000);
+	msleep(7);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(1*1000);
+	msleep(1);
 	memcpy(buf, "\x34\x87\xba\x0d\xfc\x8a\x91\x51", 0x0000008);
 	ret = usb_interrupt_write(devh, 0x00000002, buf, 0x0000008, 1000);
-	usleep(7*1000);
+	msleep(7);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(2*1000);
+	msleep(2);
 	//URB_FUNCTION_GET_STATUS_FROM_ENDPOINT skipped
-	usleep(4*1000);
+	msleep(4);
 	memcpy(buf, "\x37\x01\xfe\xdb\xc1\x33\x1f\x83", 0x0000008);
 	ret = usb_interrupt_write(devh, 0x00000002, buf, 0x0000008, 1000);
-	usleep(2*1000);
+	msleep(2);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(1*1000);
+	msleep(1);
 	memcpy(buf, "\x37\x0e\xb5\x9d\x3b\x8a\x91\x51", 0x0000008);
 	ret = usb_interrupt_write(devh, 0x00000002, buf, 0x0000008, 1000);
-	usleep(7*1000);
+	msleep(7);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(1*1000);
+	msleep(1);
 	memcpy(buf, "\x34\x87\xba\x0d\xfc\x8a\x91\x51", 0x0000008);
 	ret = usb_interrupt_write(devh, 0x00000002, buf, 0x0000008, 1000);
-	usleep(7*1000);
+	msleep(7);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(8*1000);
+	msleep(8);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(1*1000);
+	msleep(1);
 	//URB_FUNCTION_GET_STATUS_FROM_ENDPOINT skipped
-	usleep(4*1000);
+	msleep(4);
 	memcpy(buf, "\x33\x04\xfe\x00\xf4\x6c\x1f\xf0", 0x0000008);
 	ret = usb_interrupt_write(devh, 0x00000002, buf, 0x0000008, 1000);
-	usleep(3*1000);
+	msleep(3);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
-	usleep(1*1000);
+	msleep(1);
 	//URB_FUNCTION_GET_STATUS_FROM_ENDPOINT skipped
-	usleep(4*1000);
+	msleep(4);
 	memcpy(buf, "\x32\x07\xfe\xf0\x29\xb9\x3a\xf0", 0x0000008);
 	ret = usb_interrupt_write(devh, 0x00000002, buf, 0x0000008, 1000);
-	usleep(3*1000);
+	msleep(3);
 	ret = usb_interrupt_read(devh, 0x00000081, buf, 0x0000008, 1000);
 
 	if (buf)
diff --git a/extras/scsi_id/scsi_serial.c b/extras/scsi_id/scsi_serial.c
index 0f883dc02f..2e9168f941 100644
--- a/extras/scsi_id/scsi_serial.c
+++ b/extras/scsi_id/scsi_serial.c
@@ -23,6 +23,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <syslog.h>
+#include <time.h>
 #include <inttypes.h>
 #include <scsi/scsi.h>
 #include <scsi/sg.h>
@@ -846,13 +847,15 @@ int scsi_get_serial(struct udev *udev,
 	memset(dev_scsi->serial, 0, len);
 	dbg(udev, "opening %s\n", devname);
 	while (--cnt) {
+		const struct timespec duration = { 0, 500 * 1000 * 1000 };
+
 		fd = open(devname, O_RDONLY | O_NONBLOCK);
 		if (fd >= 0)
 			break;
 		info(udev, "%s: cannot open %s: %s\n", dev_scsi->kernel, devname, strerror(errno));
 		if (errno != EBUSY)
 			break;
-		usleep(500000 + (rand() % 100000) );
+		nanosleep(&duration, NULL);
 	}
 	if (fd < 0)
 		return 1;