Implement "info chardev" command. (Gerd Hoffmann)

This patch makes qemu keep track of the character devices in use and
implements a "info chardev" monitor command to print a list.

qemu_chr_open() sticks the devices into a linked list now.  It got a new
argument (label), so there is a name for each device.  It also assigns a
filename to each character device.  By default it just copyes the
filename passed in.  Individual drivers can fill in something else
though.  qemu_chr_open_pty() sets the filename to name of the pseudo tty
allocated.

Output looks like this:

  (qemu) info chardev
  monitor: filename=unix:/tmp/run.sh-26827/monitor,server,nowait
  serial0: filename=unix:/tmp/run.sh-26827/console,server
  serial1: filename=pty:/dev/pts/5
  parallel0: filename=vc:640x480

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5575 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 4 insertions, 1 deletions

diff --git a/hw/usb-serial.c b/hw/usb-serial.c
index 40d04cb..a6a756d 100644
--- a/hw/usb-serial.c
+++ b/hw/usb-serial.c
@@ -521,6 +521,8 @@ USBDevice *usb_serial_init(const char *filename)
     USBSerialState *s;
     CharDriverState *cdrv;
     unsigned short vendorid = 0x0403, productid = 0x6001;
+    char label[32];
+    static int index;
 
     while (*filename && *filename != ':') {
         const char *p;
@@ -555,7 +557,8 @@ USBDevice *usb_serial_init(const char *filename)
     if (!s)
         return NULL;
 
-    cdrv = qemu_chr_open(filename);
+    snprintf(label, sizeof(label), "usbserial%d", index++);
+    cdrv = qemu_chr_open(label, filename);
     if (!cdrv)
         goto fail;
     s->cs = cdrv;