| README.enetaddr (382bee57f19b4454e2015bc19a010bc2d0ab9337) | README.enetaddr (fd1e959e91d2b0b2e853d09dd9167dfff18a616c) |
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| 1--------------------------------- 2 Ethernet Address (MAC) Handling 3--------------------------------- 4 5There are a variety of places in U-Boot where the MAC address is used, parsed, 6and stored. This document covers proper usage of each location and the moving 7of data between them. 8 --- 84 unchanged lines hidden (view full) --- 93to determine address validity. 94uchar enetaddr[6]; 95if (!eth_getenv_enetaddr("ethaddr", enetaddr)) { 96 /* "ethaddr" is not set in the environment */ 97 ... try and setup "ethaddr" in the env ... 98} 99/* enetaddr is now set to the value stored in the ethaddr env var */ 100 | 1--------------------------------- 2 Ethernet Address (MAC) Handling 3--------------------------------- 4 5There are a variety of places in U-Boot where the MAC address is used, parsed, 6and stored. This document covers proper usage of each location and the moving 7of data between them. 8 --- 84 unchanged lines hidden (view full) --- 93to determine address validity. 94uchar enetaddr[6]; 95if (!eth_getenv_enetaddr("ethaddr", enetaddr)) { 96 /* "ethaddr" is not set in the environment */ 97 ... try and setup "ethaddr" in the env ... 98} 99/* enetaddr is now set to the value stored in the ethaddr env var */ 100 |
| 101 * int eth_setenv_enetaddr(char *name, const uchar *enetaddr); | 101 * int eth_env_set_enetaddr(char *name, const uchar *enetaddr); |
| 102 103Store the MAC address into the named environment variable. The return value is 104the same as the env_set() function. 105uchar enetaddr[6] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }; | 102 103Store the MAC address into the named environment variable. The return value is 104the same as the env_set() function. 105uchar enetaddr[6] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }; |
| 106eth_setenv_enetaddr("ethaddr", enetaddr); | 106eth_env_set_enetaddr("ethaddr", enetaddr); |
| 107/* the "ethaddr" env var should now be set to "00:11:22:33:44:55" */ 108 109 * the %pM format modifier 110 111The %pM format modifier can be used with any standard printf function to format 112the binary 6 byte array representation of a MAC address. 113uchar enetaddr[6] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }; 114printf("The MAC is %pM\n", enetaddr); 115 116char buf[20]; 117sprintf(buf, "%pM", enetaddr); 118/* the buf variable is now set to "00:11:22:33:44:55" */ | 107/* the "ethaddr" env var should now be set to "00:11:22:33:44:55" */ 108 109 * the %pM format modifier 110 111The %pM format modifier can be used with any standard printf function to format 112the binary 6 byte array representation of a MAC address. 113uchar enetaddr[6] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 }; 114printf("The MAC is %pM\n", enetaddr); 115 116char buf[20]; 117sprintf(buf, "%pM", enetaddr); 118/* the buf variable is now set to "00:11:22:33:44:55" */ |