Author: thompsa
Date: Sun Mar 22 04:19:36 2009
New Revision: 190238
URL: http://svn.freebsd.org/changeset/base/190238
Log:
Improve debugging output around ioctls.
Modified:
head/sys/dev/usb/usb_dev.c
Modified: head/sys/dev/usb/usb_dev.c
==============================================================================
--- head/sys/dev/usb/usb_dev.c Sun Mar 22 02:33:48 2009 (r190237)
+++ head/sys/dev/usb/usb_dev.c Sun Mar 22 04:19:36 2009 (r190238)
@@ -821,7 +821,7 @@ usb2_open(struct cdev *dev, int fflags,
struct usb2_cdev_privdata *cpd;
int err, ep;
- DPRINTFN(2, "fflags=0x%08x\n", fflags);
+ DPRINTFN(2, "%s fflags=0x%08x\n", dev->si_name, fflags);
KASSERT(fflags & (FREAD|FWRITE), ("invalid open flags"));
if (((fflags & FREAD) && !(pd->mode & FREAD)) ||
@@ -990,6 +990,7 @@ usb2_ioctl_f_sub(struct usb2_fifo *f, u_
default:
return (ENOIOCTL);
}
+ DPRINTFN(3, "cmd 0x%lx = %d\n", cmd, error);
return (error);
}
@@ -1004,6 +1005,8 @@ usb2_ioctl(struct cdev *dev, u_long cmd,
int fflags;
int err;
+ DPRINTFN(2, "cmd=0x%lx\n", cmd);
+
err = devfs_get_cdevpriv((void **)&cpd);
if (err != 0)
return (err);
@@ -1019,8 +1022,6 @@ usb2_ioctl(struct cdev *dev, u_long cmd,
}
fflags = cpd->fflags;
- DPRINTFN(2, "fflags=%u, cmd=0x%lx\n", fflags, cmd);
-
f = NULL; /* set default value */
err = ENOIOCTL; /* set default value */
@@ -1035,12 +1036,14 @@ usb2_ioctl(struct cdev *dev, u_long cmd,
KASSERT(f != NULL, ("fifo not found"));
if (err == ENOIOCTL) {
err = (f->methods->f_ioctl) (f, cmd, addr, fflags);
+ DPRINTFN(2, "f_ioctl cmd 0x%lx = %d\n", cmd, err);
if (err == ENOIOCTL) {
if (usb2_uref_location(cpd)) {
err = ENXIO;
goto done;
}
err = (f->methods->f_ioctl_post) (f, cmd, addr, fflags);
+ DPRINTFN(2, "f_ioctl_post cmd 0x%lx = %d\n", cmd, err);
}
}
if (err == ENOIOCTL) {
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