diff options
Diffstat (limited to 'drivers/usb/core/devio.c')
| -rw-r--r-- | drivers/usb/core/devio.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 4247eccf858..165de5d5900 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -52,6 +52,7 @@ #include "hcd.h" /* for usbcore internals */ #include "usb.h" +#include "hub.h" #define USB_MAXBUS 64 #define USB_DEVICE_MAX USB_MAXBUS * 128 @@ -655,6 +656,7 @@ static int usbdev_release(struct inode *inode, struct file *file) struct async *as; usb_lock_device(dev); + usb_hub_release_all_ports(dev, ps); /* Protect against simultaneous open */ mutex_lock(&usbfs_mutex); @@ -1548,6 +1550,29 @@ static int proc_ioctl_compat(struct dev_state *ps, compat_uptr_t arg) } #endif +static int proc_claim_port(struct dev_state *ps, void __user *arg) +{ + unsigned portnum; + int rc; + + if (get_user(portnum, (unsigned __user *) arg)) + return -EFAULT; + rc = usb_hub_claim_port(ps->dev, portnum, ps); + if (rc == 0) + snoop(&ps->dev->dev, "port %d claimed by process %d: %s\n", + portnum, task_pid_nr(current), current->comm); + return rc; +} + +static int proc_release_port(struct dev_state *ps, void __user *arg) +{ + unsigned portnum; + + if (get_user(portnum, (unsigned __user *) arg)) + return -EFAULT; + return usb_hub_release_port(ps->dev, portnum, ps); +} + /* * NOTE: All requests here that have interface numbers as parameters * are assuming that somehow the configuration has been prevented from @@ -1689,6 +1714,16 @@ static int usbdev_ioctl(struct inode *inode, struct file *file, snoop(&dev->dev, "%s: IOCTL\n", __func__); ret = proc_ioctl_default(ps, p); break; + + case USBDEVFS_CLAIM_PORT: + snoop(&dev->dev, "%s: CLAIM_PORT\n", __func__); + ret = proc_claim_port(ps, p); + break; + + case USBDEVFS_RELEASE_PORT: + snoop(&dev->dev, "%s: RELEASE_PORT\n", __func__); + ret = proc_release_port(ps, p); + break; } usb_unlock_device(dev); if (ret >= 0) |