As Dariusz wrote:

> avrdude -p m48p -c usbasp -F
> 
> avrdude: error: programm enable: target doesn't answer. 1
> avrdude: initialization failed, rc=-1
> avrdude: AVR device initialized and ready to accept instructions
> avrdude: Device signature = 0x88d692

Seems like your USBasp's default ISP clock is too fast.  A
new device requires an ISP clock less than 250 kHz, as its
default CPU clock is 1 MHz.

Try option -B10, resulting in approximately 100 kHz.  (I think
USBasp now accepts the -B option.)
-- 
cheers, Joerg               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)

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