Re: drivers for spectrometer device and ARM SAM-BA USB Bootloader

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Thank you for your comments!

> static ssize_t at91sam_write (struct file *file,
>                const char __user *buffer, size_t count, loff_t *ppos) {
>        int retval=0,
>            count_bytes,
>            needed_write_bytes=0;
>        char addrbuf[ADDRESS_SIZE+1],
>             lendata[ADDRESS_SIZE+1],
>
> DMA on the stack. On some architectures this will fail.


Give me please, how should I proceed in this case? kzalloc? Then it
will work longer
I'm sorry for disturbing.
Regards
          Alexander
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