Re: [U-Boot] fopen/fwrite functions
Dear tiger...@viatech.com.cn, In message fe7aded5c2218b4786c09cd97dc4c49f8db...@exchbj02.viatech.com.bj you wrote: Could i use fopen/fwrite standard C lib functions in U-boot code? What for? We do not even have a concept of files in U-Boot... Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de Any time things appear to be going better, you have overlooked some- thing. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] fopen/fwrite functions
Dear Denk: U-boot supports FAT file system. So, i want to read/write a file in USB disk (formatted with fat file system). So, could i use fopen/fwrite functions? Best wishes, -邮件原件- 发件人: Wolfgang Denk [mailto:w...@denx.de] 发送时间: 2013年5月30日 15:50 收件人: Tiger Liu 抄送: u-boot@lists.denx.de 主题: Re: [U-Boot] fopen/fwrite functions Dear tiger...@viatech.com.cn, In message fe7aded5c2218b4786c09cd97dc4c49f8db...@exchbj02.viatech.com.bj you wrote: Could i use fopen/fwrite standard C lib functions in U-boot code? What for? We do not even have a concept of files in U-Boot... Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de Any time things appear to be going better, you have overlooked some- thing. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] fopen/fwrite functions
Dear tiger...@viatech.com.cn, please do not top post / full quote. See [1] if you need help. [1] http://www.netmeister.org/news/learn2quote.html In message fe7aded5c2218b4786c09cd97dc4c49f8db...@exchbj02.viatech.com.bj you wrote: U-boot supports FAT file system. Yes, it does. And it supports commands to access these. So, i want to read/write a file in USB disk (formatted with fat file system). So, could i use fopen/fwrite functions? No, you cannot. As I mentioned before: We do not even have a concept of files in U-Boot. Operations like fopen/fwrite make only sense when you always have an underlying file system (like the root file system in Unix systems). We don't have that, and so we have no functions like fopen() or open() etc. To read a file from a FAT file system, you have to use the file system specific access code, in this case do_fat_fsload() resp. do_load() Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de When properly administered, vacations do not diminish productivity: for every week you're away and get nothing done, there's another when your boss is away and you get twice as much done. -- Daniel B. Luten ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] fopen/fwrite functions
Dear Denk: Got it! Thank you! Best wishes, ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] fopen/fwrite functions
Hi, experts: Could i use fopen/fwrite standard C lib functions in U-boot code? Best wishes, ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
