Dear all, I recently got an Huawei E220 usb modem. Reading a bit on the net I found that:
The Huaweii E220 modem is a composite USB device: in fact it acts like a mass storage device, and also as three serial communication ports. The Linux's developers dealt with this ignoring the mass device storage (which is a read-only mass storage, i.e. a CD-ROM with preload software only for Windows). For more information see http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.20-rc2 or http://lwn.net/Articles/220545/ where you read the changelog for 2.6.20 linux kernel. The interesting part is reported here below: [...] Johann Wilhelm (2): usb-storage: Ignore the virtual cd-drive of the Huawei E220 USB Modem usb-gsm-driver: Added VendorId and ProductId for Huawei E220 USB Modem [...] This modification is present from Linux kernel 2.6.20 and more recent ones. See: http://ske.sourceforge.net/html/projects/huawei/huawei_tre.html Now that I plug my modem I definitely get this usb storage device, and I need to call a special program to switch to the other mode (huaweiAktBbo, from http://www.kanoistika.sk/bobovsky/archiv/umts/huaweiAktBbo.c). Several pages on the web state that it should work *without* this switch program. Is this a regression from 2.6.20, or is it supposed to work? Thanks a lot and all the best Norbert ------------------------------------------------------------------------------- Dr. Norbert Preining <[EMAIL PROTECTED]> Vienna University of Technology Debian Developer <[EMAIL PROTECTED]> Debian TeX Group gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094 ------------------------------------------------------------------------------- DEAL (n.) The gummy substance found between damp toes. --- Douglas Adams, The Meaning of Liff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
