- default:
-
- if (_IOC_TYPE(cmd) != 'E')
- return -EINVAL;
-
- if (_IOC_DIR(cmd) == _IOC_READ) {
-
- if ((_IOC_NR(cmd) & ~EV_MAX) == _IOC_NR(EVIOCGBIT(0,0))) {
-
- long *bits;
- int len;
-
- switch (_IOC_NR(cmd) & EV_MAX) {
- case 0: bits = dev->evbit; len = EV_MAX; break;
- case EV_KEY: bits = dev->keybit; len = KEY_MAX; break;
- case EV_REL: bits = dev->relbit; len = REL_MAX; break;
- case EV_ABS: bits = dev->absbit; len = ABS_MAX; break;
- case EV_MSC: bits = dev->mscbit; len = MSC_MAX; break;
- case EV_LED: bits = dev->ledbit; len = LED_MAX; break;
- case EV_SND: bits = dev->sndbit; len = SND_MAX; break;
- case EV_FF: bits = dev->ffbit; len = FF_MAX; break;
- case EV_SW: bits = dev->swbit; len = SW_MAX; break;
- default: return -EINVAL;
- }
- len = NBITS(len) * sizeof(long);
- if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
- return copy_to_user(p, bits, len) ? -EFAULT : len;
- }
-
- if (_IOC_NR(cmd) == _IOC_NR(EVIOCGKEY(0))) {
- int len;
- len = NBITS(KEY_MAX) * sizeof(long);
- if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
- return copy_to_user(p, dev->key, len) ? -EFAULT : len;
- }
-
- if (_IOC_NR(cmd) == _IOC_NR(EVIOCGLED(0))) {
- int len;
- len = NBITS(LED_MAX) * sizeof(long);
- if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
- return copy_to_user(p, dev->led, len) ? -EFAULT : len;
- }
-
- if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSND(0))) {
- int len;
- len = NBITS(SND_MAX) * sizeof(long);
- if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
- return copy_to_user(p, dev->snd, len) ? -EFAULT : len;
- }
-
- if (_IOC_NR(cmd) == _IOC_NR(EVIOCGSW(0))) {
- int len;
- len = NBITS(SW_MAX) * sizeof(long);
- if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
- return copy_to_user(p, dev->sw, len) ? -EFAULT : len;
- }
-
- if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0))) {
- int len;
- if (!dev->name) return -ENOENT;
- len = strlen(dev->name) + 1;
- if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
- return copy_to_user(p, dev->name, len) ? -EFAULT : len;
- }
-
- if (_IOC_NR(cmd) == _IOC_NR(EVIOCGPHYS(0))) {
- int len;
- if (!dev->phys) return -ENOENT;
- len = strlen(dev->phys) + 1;
- if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
- return copy_to_user(p, dev->phys, len) ? -EFAULT : len;
- }
-
- if (_IOC_NR(cmd) == _IOC_NR(EVIOCGUNIQ(0))) {
- int len;
- if (!dev->uniq) return -ENOENT;
- len = strlen(dev->uniq) + 1;
- if (len > _IOC_SIZE(cmd)) len = _IOC_SIZE(cmd);
- return copy_to_user(p, dev->uniq, len) ? -EFAULT : len;
- }
-
- if ((_IOC_NR(cmd) & ~ABS_MAX) == _IOC_NR(EVIOCGABS(0))) {
-
- int t = _IOC_NR(cmd) & ABS_MAX;
-
- abs.value = dev->abs[t];
- abs.minimum = dev->absmin[t];
- abs.maximum = dev->absmax[t];
- abs.fuzz = dev->absfuzz[t];
- abs.flat = dev->absflat[t];
-
- if (copy_to_user(p, &abs, sizeof(struct input_absinfo)))
- return -EFAULT;
-
- return 0;
- }