diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-19 13:07:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-19 13:07:19 -0800 |
| commit | 920841d8d1d61bc12b43f95a579a5374f6d98f81 (patch) | |
| tree | 413be4ee2a75bb523d6e829ef0e52057f408222e /drivers/ieee1394/raw1394.c | |
| parent | 5c56f466835d20fc4f7119063a8c029f7170a317 (diff) | |
| parent | a65421ea3f8a0e78b4e3b858bdc5ada5ad653807 (diff) | |
Merge branch 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
ieee1394: fix another deadlock in nodemgr
ieee1394: cycle timer read extension for raw1394
Diffstat (limited to 'drivers/ieee1394/raw1394.c')
| -rw-r--r-- | drivers/ieee1394/raw1394.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c index aa9ca8385ec..bb897a37d9f 100644 --- a/drivers/ieee1394/raw1394.c +++ b/drivers/ieee1394/raw1394.c @@ -2669,6 +2669,18 @@ static void raw1394_iso_shutdown(struct file_info *fi) fi->iso_state = RAW1394_ISO_INACTIVE; } +static int raw1394_read_cycle_timer(struct file_info *fi, void __user * uaddr) +{ + struct raw1394_cycle_timer ct; + int err; + + err = hpsb_read_cycle_timer(fi->host, &ct.cycle_timer, &ct.local_time); + if (!err) + if (copy_to_user(uaddr, &ct, sizeof(ct))) + err = -EFAULT; + return err; +} + /* mmap the rawiso xmit/recv buffer */ static int raw1394_mmap(struct file *file, struct vm_area_struct *vma) { @@ -2777,6 +2789,14 @@ static int raw1394_ioctl(struct inode *inode, struct file *file, break; } + /* state-independent commands */ + switch(cmd) { + case RAW1394_IOC_GET_CYCLE_TIMER: + return raw1394_read_cycle_timer(fi, argp); + default: + break; + } + return -EINVAL; } |