linux I2CÇý¶¯·ÖÎö
I2CÊÇPhillips¿ª·¢µÄ2ÏߵĴ®ÐÐ×ÜÏßÐÒ顣ͨ³£Ó¦ÓÃÔÚǶÈëʽϵͳÖÐÈò»Í¬µÄ×é¼þͨÐÅ£¬PCÖ÷°å¿ÉÒÔͨ¹ýI2CÀ´Ó벻ͬµÄ´«¸ÐÆ÷ͨÐÅ¡£ÕâЩ´«¸ÐÆ÷ͨ³£±¨¸æ·çÉÈËٶȣ¬´¦ÀíÆ÷ζȺÍÕû¸öÓ²¼þϵͳµÄÐÅÏ¢£¬Õâ¸öÐÒéÒ²¿ÉÒÔÓÃÔÚRAM chipsÉÏ£¬Ïò²Ù×÷ϵͳÌṩDIMMµÄÐÅÏ¢¡£
ÔÚ2.0ʱI2CµÄkernelÔ´Âë²»ÔÚÄÚºËÀïµÄ£¬2.4Äں˰üÀ¨ÁËÒ»µã¶ÔI2CµÄÖ§³Ö£¬Ö÷ÒªÊÇÊÓƵÇý¶¯¡£
ÔÚ2.6ÄÚºËÀ´óÁ¿µÄI2C´úÂë¼ÓÈëµ½ÁËÄÚºËÀï¡£¸ÐлºÜ¶àÄں˿ª·¢ÕßµÄŬÁ¦£¬ËûÃÇÈýӿڸüÈÝÒ×±»ÄÚºËÉçÇø½ÓÊÜ¡£ÓÐЩÇý¶¯ÈÔÔÚÍⲿµÄCVSÊ÷ÀûÓзÅÈëkernel.orgÀµ«ÊÇËûÃDZ»ÒÆÖ²Ö»ÊÇʱ¼äµÄÎÊÌâ¡£
I2CµÄkernelÔ´Âë±»·Ö³É¼¸¸ö²¿·Ö£ºthe I2C core, I2C bus drivers£¬I2C algorithm drivers and I2C chip drivers¡£ÎÒÃǽ«ºöÂÔI2C core²¿·Ö£¬¶øÊǹØ×¢ÈçºÎ±àдa bus and algorithm Çý¶¯¡£
I2C Bus Drivers ×ÜÏßÇý¶¯
I2C×ÜÏßÇý¶¯ÓÃÒ»¸ö½á¹¹i2c_adapterÀ´ÃèÊö£¬¸Ã½á¹¹ÔÚÎļþinclude/linux/i2c.hÀﶨÒå¡£
ÒÔϵÄ×Ö¶ÎÐèÒªÔÚ×ÜÏßÇý¶¯ÀïÉèÖãº
struct module *owner; -set to the value (THIS_MODULE) that allows the proper module reference counting.
unsigned int class; -the type of I2C class devices that this driver supports. Usually this is set to the value I2C_ADAP_CLASS_SMBUS.
struct i2c_algorithm *algo; -a pointer to the struct i2c_algorithm structure that describes the way data is transferred through this I2C bus controller. More information on this structure is provided below.
char name[I2C_NAME_SIZE]; -set to a descriptive name of the I2C bus driver. This value shows up in the sysfs filename associated with this I2C adapter.
ÒÔϵĴúÂëÀ´×ÔÒ»¸öI2C adapterÇý¶¯µÄÀý×Ótiny_i2c_adap.c£¬
¿ÉÒÔÔÚthe Linux Journal FTP site [ftp.ssc.com/pub/lj/listings/issue116/7136.tgz [1]] »ñµÃ¡£
À´¿´¿´struct i2c_adapter ÈçºÎ±»ÉèÖãº
static struct i2c_adapter tiny_adapter = {
.owner = THIS_MODULE,
.class = I2C_ADAP_CLASS_SMBUS,
.algo = &tiny_algorithm,
.name = "tiny adapter",
};
Ҫע²áI2C adapter£¬Çý¶¯µ
Ïà¹ØÎĵµ£º
PCIÊÇÍâΧÉ豸»¥ÁªµÄ¼ò³Æ(Peripheral Component
Interconnect)µÄ¼ò³Æ£¬×÷ΪһÖÖͨÓõÄ×ÜÏß½Ó¿Ú±ê×¼£¬ËûÔÚ¼ÆËã»úϵͳÖеõ½Á˹㷺µÄʹÓá£PCIµÄËÙ¶ÈÄܹ»´ïµ½132M/s¡£ÔÚÕâÀï¼òµ¥µÄ½é
ÉÜһϠlinux ÏÂPCIÇý¶¯µÄʵÏÖ¡£
ÔÚ±àдһ¸öPCIÇý¶¯µÄʱºòÎÒÃÇÏȵÃÈ·¶¨ÏµÍ³ÖÐÊÇ·ñÓÐÎÒÃǵÄÉ豸¡£ÎÒÃÇ¿ÉÒÔͨ¹ýlspci
²é¿´PCIÉ豸¡£
[roo ......
C/C++ÊÇ×îÖ÷ÒªµÄ±à³ÌÓïÑÔ¡£ÕâÀïÁгöÁË50ÃûÓÅÐãÍøÕ¾ºÍÍøÒ³Çåµ¥£¬ÕâЩÍøÕ¾Ìṩc/c++Ô´´úÂë¡£Õâ·ÝÇåµ¥ÌṩÁËÔ´´úÂëµÄÁ´½ÓÒÔ¼°ËüÃǵÄС˵Ã÷¡£ÎÒÒѾ¡Á¦°üÀ¨×î¼ÑµÄC/C++Ô´´úÂëµÄÍøÕ¾¡£Õâ²»ÊÇÒ»¸öÍêÕûµÄÇåµ¥£¬ÄúÓн¨Òé¿ÉÒÔÁªÏµÎÒ£¬ÎÒ½«»¶ÓÄúµÄ½¨Ò飬ÒÔ½øÒ»²½¼ÓÇ¿Õâ·½ÃæµÄÇåµ¥¡£
1¡¢http://snippets.dzone.com/tag/c/ --ÊýÒÔǧ¼Æ ......
°²×°gftp
yum install gftp
ĬÈÏ״̬ÏÂgftpÊÇûÓÐÉèÖÃ×Ö·û±àÂëµÄ£¬ËùÒÔÎÒÃÇÉÏFTPµÄʱºò£¬¿´µ½ÀïÃæµÄÖÐÎÄÎļþÃûÈ«²¿ÊÇÂÒÂ룬»òÔò²»²¿·ÖÎļþ¿´µ½Îļþ¼ÐȴûÃû×Ö£»
ÆäʵÔÚgftp-2.0.17ÒÔºóµÄ°æ±¾¶¼ÒѾºÜºÃÖ§³Öºº×ÖÁË£¬ÎÒµÄÉèÖ÷½·¨ÊǶÔËüµÄÅäÖÃÎļþÐ޸ļ´¿É£¡
Ò»°ãµÄÈí¼þÅäÖÃÎļþ»á·ÅÔÚÓû§Ä¿Â¼Ï£¬ÀýÈçÎÒÓÃr ......
ÆäʵÕâ²ÅÓ¦¸ÃÊÇÕâһϵÁÐÎÄÕµĵÚÒ»½Ú£¬ÒòΪÕâƪÎÄÕ½²µÄÊÇÅ̹ſªÌìµØµÄÊ¡£»°ËµMr.
ProcessÊÇÒ»¸öÏÖ´úÈË£¬µ«ÊÇ£¬Ö»ÒªÊÇÈË£¬×ܸÃÓиö×æÏÈ¡£ÈËÃÇ×ÜÏëÖªµÀ×Ô¼º´ÓÄÄÀ´£¬È»ºó²Å¿ÉÒÔ¹ÀÃþËãÒ»ÏÂ×Ô¼º½«È¥ÏòºÎ·½¡£ËùÒÔÔÛÒ²ÒªÁ˽âÒ»ÏÂ
LinuxµÄÊÀ½çÀïÈËÀàµÄÆðÔ´¡£
ͼ1£º´ÓÉϵ絽BIOS
°´ÏµçÔ´¿ª¹ØµÄÄǸöÕæʵµÄÈ˾ÍÊÇLinuxÊÀ½çÀïµÄ ......