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Altera_Forum's avatar
Altera_Forum
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20 years ago

char driver

Is it not possible to have two successive writes/reads for a device opened in "r+" mode without closing and reopening the device? I have written char driver for this device which has a number of regi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

$ man fopen:

The fopen function opens the file whose name is the string pointed to by path and associates a stream with it.

For device files, you need to use: 

int handle = open(/dev/mtd/5, O_RDWR);
/* ... */
close(handle);