[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Access to raw keycodes in xen domU
Hi. There is a need to have access to raw keycodes in xen domU (like showkey (1)). Using xen-hypervisor-3.2 and linux-2.6.18-xen-3.2.0 with these parameters: kernel = "/my/vmlinuz" memory = 128 name = "dn1" vif = [ '' ] disk = [ 'tap:aio:/my/img,hda1,w' ] root = "/dev/hda1 ro" extra = "2 xencons=tty" I run "# strace showkey" inside domU and get this: ... open("/dev/tty", O_RDWR) = 3 ioctl(3, KDGKBTYPE, 0x7fff91e9da17) = -1 EINVAL (Invalid argument) ... Indeed there is no ioctl() implementation assigned to xencons_ops.ioctl in linux-2.6.18-xen-3.2.0/drivers/xen/console/console.c I've tried assigning xencons_ops.ioctl to something like that: static int xencons_ioctl(struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) { unsigned char ucval; long val; switch (cmd) { case KDGKBTYPE: ucval = KB_101; return put_user(ucval, (char __user *)arg); case KDGKBMODE: val = K_UNICODE; return put_user(val, (long __user *)arg); case KDSKBMODE: return 0; } return -ENOIOCTLCMD; } It's enough to make showkey run, but it does not report correct keycodes. I think I have to do something like HYPERVISOR_console_io(CONSOLEIO_ioctl, ... ) but there is no CONSOLEIO_ioctl. Could you please suggest what can I do to access raw keycodes? _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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