+@@ -265,12 +273,12 @@
+ }
+
+
++
+ int
+-exit_ath_wmac(u_int16_t wlanNum)
++exit_ath_wmac(u_int16_t wlanNum, struct ar531x_config *config)
+ {
+ struct ath_ahb_softc *sc = sclist[wlanNum];
+ struct net_device *dev;
+- const char *sysType;
+ u_int16_t devid;
+
+ if (sc == NULL)
+@@ -280,13 +288,17 @@
+ ath_detach(dev);
+ if (dev->irq)
+ free_irq(dev->irq, dev);
+- sysType = get_system_type();
+- if (!strcmp(sysType, "Atheros AR5315"))
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
++ devid = (u32) config->tag;
++#else
++ if (!strcmp(get_system_type(), "Atheros AR5315"))
+ devid = (u_int16_t) (sysRegRead(AR5315_SREV) &
+ (AR5315_REV_MAJ_M | AR5315_REV_MIN_M));
+ else
+ devid = (u_int16_t) ((sysRegRead(AR531X_REV) >> 8) &
+ (AR531X_REV_MAJ | AR531X_REV_MIN));
++#endif
+
+ ahb_disable_wmac(devid, wlanNum);
+ free_netdev(dev);
+@@ -295,7 +307,7 @@